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1 This Book let con tains 40 printed pages. &Òü šøå šìy 40> ³å[ t šõë à "àìá ú AN8 XX EXAMINATION STPGT SUBJECT : PHYSICS Question Booklet No. šøå -šå[ñza à Î}J à Do not open this Question Book let un til you are asked to do so. &Òü šøå šy t Û o Jåºìt >à ºà Òì t t Û o š z Jåºì > >à ú Read care fully all the in struc tions given at the back page and on the front page of this Ques tion Book let. &Òü šøå šìy¹ ëåè šõë à * šø=³ šõë àú ëƒ*úà γÑz [>ìƒ Åà ºã ³ì>àì àkîòa àì¹ šøl æ> ú Instructions for Candidates š¹ãû à= ã샹 \> [>ìƒ Åà ºã. Use Black Ballpoint Pen only for writing particulars of this Question Booklet and marking responses on the OMR Answer Sheet.. This test is of hours and 30 minutes duration and consists of 50 MCQ-type questions. Each question carries mark. 3. There is no negative marking for any wrong answer. 4. Rough work should be done only in the space provided in the Question Booklet. 5. The answers are to be marked on the OMR Answer Sheet only. Mark your responses carefully since there is no chance of alteration/correction. 6. Use of eraser or whitener is strictly prohibited. 7. Candidates should note that each question is given in bilingual form (English and Bengali). In case of any discrepancy or confusion in the medium/version, the English Version will be treated as the authentic version.. &Òü šøå šìy ëºj๠\> & } OMR l üv ¹šìy l üv ¹ [W [Òû t A ¹ìt Ç å³ày A àìºà A à[º¹ ºšìÚ i A º³ Ò๠A ¹ç > ú. &Òü š¹ãû à¹ Î³Ú Qsi à 30 [³[>i ú š¹ãû àú ë³ài 50[i MCQ ¹ì>¹ šøå =àa ì ú šø[t [i šøìå ¹ ³èº às Òì (&A ) ú 3. å º l üv ì¹¹ \> ëa àì>à oàua > ¹ =àa ì >à ú 4. š¹ãû à= ãìa ¹àó *ÚàA A ¹ìt Òì Ç å³ày ëa àìæw > åa ìºìi (šøå šìy) [>[ƒ Ê A ¹à Ñ àì> ú 5. šøìå ¹ l üv ¹ Ç å³ày OMR l üv ¹šìy [W [Òû t A ¹ìt Òì ú l üv ¹ [W [Òû t A ¹à¹ [ ÈìÚ š¹ãû à= ãìa Îì àzw Ît A t à " º > A ¹ìt Òì ú šøìå ¹ l üv ¹ &A ๠[W [Òû t A ¹à ÒìÚ ëkìº ëa àì>à " Ñ àìt Òü t àìa š[¹ t > à Î}ìÅà > A ¹à àì >à ú 6. A à[º-ë³àw >ãú Òüì¹\๠à Îàƒà t ¹º-\àt ãú Ññ¹ Ò๠Πšèo ¹ê ìš [>[È ý ú 7. š¹ãû à= ã샹 ³ì> ¹àJìt Òì ë šøå šìy¹ šøå P [º [ - à[èa (Òü}¹à\ã * à}ºà) Òì ú &Òü ëû ìy àèà-³à ³ à àèà-î}ñh¹ìo ëa àì>à ¹ì>¹ "ÎU[t "= à ë àc ๠"Îå[ à l üšº Òìº Òü}¹à\ã Î}ÑH¹oìA Òü šøaõ t Ç ý ìº Ko A ¹ì > ú Name of the Can di date (in Cap i tals) : š¹ãû à= ã¹ >à³ ( Øl "Û ì¹) Roll No. : OMR An swer Sheet No. : ë¹àº > ¹ OMR l üv ¹šìy¹ > ¹ Full Sig na ture of the Can di date with date š¹ãû à= ã¹ Î šèo Ñ àû ¹ t à[¹jîò Signature of the Invigilator with date [>¹ãÛ ìa ¹ Ñ àû ¹ t à[¹jîò

2 Direction : Answer the following questions by selecting the correct option. /9 [>ìƒ [ÅA à : Î[k A l üv ¹ [> àw > A ì¹ >ãìw ¹ šøå P [º¹ l üv ¹ ƒà* ú. The magnetic moment of a circular orbit of radius r carrying a charge q and rotating with velocity v is given by qvr qvr qvr (D) qvr. The Landé g factor for the level 3 D 3 is /3 3/ 3/4 (D) 4/3 3. The degeneracy of the spectral term 3 F is (D) 4. According to vector atom model, the number of quantum numbers necessary to specify an electron is (D) 6 5. P fund series of hydrogen spectrum lies in the VIS region UV region far-ir region (D) IR region. q "à à> v ë ìk r àîàì ¹ õv šì= Qå¹ìº l üš±ét ëw ï A à³ìa ¹ ³à> Òì qvr qvr qvr (D) qvr. 3 D 3 ëºì 캹 \> º àì g ó àc ì¹¹ ³à> Òì /3 3/ 3/4 (D) 4/ F ëñšc öຠi àì³ ¹ ëû ìy [l ì\> àì¹îã¹ ³à> Òì (D) 4. ë C ¹ " ài ³ ³ìl º ">åîàì¹ &A [i ÒüìºC ö>ìa l üšñ à[št A ¹ìt ëkìº ë A Ú[i ëa àúà i à³ Î}J ๠šøìúà\> t à Òº (D) 6 5. ÒàÒüìl öàì\> o àºã¹ P-ó à ëåøoã " Ñ à> A ì¹ VIS "e ìº UV "e ìº ƒè¹ t ã IR "e ìº (D) IR "e ìº

3 /9 3 [ P.T.O. 6. If f and f are the frequencies of the electron in the first and second Bohr orbits respectively, then f/ f is Which of the following wave functions is the solution of Schrödinger s equation? Asec x Ae x Ae x (D) Ae x 8. Quantum mechanics gives the value of classical mechanics, if is considered ( ) ( x ) Ae i k x x t ( x ) constant (D) the expectation values are considered 9. For laser action to occur the medium must have at least 4 energy levels energy levels 3 energy levels 0. The example of pulsed laser is He Ne laser Ruby laser argon-ion laser. The colour of the laser output from a Ruby laser is green red blue (D) violet 6. [ƒ šø=³ * [ t ãú ë ๠A Û šì= Qèo àú³à> ÒüìºC öì>¹ A šàs P [º f * f ÒÚ, t ì f / f -&¹ ³à> Òì >ãìw ¹ ëa à>[i Åø[l }K๠γãA ¹ìo¹ t ¹U "ìšû A Îè[W t A ì¹? Asec x Ae x Ae x (D) Ae x 8. ëa àúà i à³ º[ ƒ à Î>àt >ã º[ ƒ ๠³à> šøƒà> A ¹ì, [ƒ ëa [ ì W >à A ¹à ÒÚ ( ) ( x ) Ae i k x x t ( x ) øç A (D) šøt à[åt ³à>P [º [ ì W >à A ¹à ÒÚ 9. ëº\๠[yû Ú๠\> ³à ì³¹ A ³šìÛ šøìúà\> 4[i Å[v û Ñz¹ [i Å[v û Ñz¹ 3[i Å[v û Ñz¹ 0. šàºîôl ëº\àì¹¹ l üƒàò¹o Òº He Ne ëº\๠¹ç [ ëº\๠"àk >-"àú> ëº\à¹. ¹ç [ ëº\๠ë=ìa šøàœ ëº\àì¹¹ o Òº Î å\ ºàº >㺠(D) ë P >ã

4 /9 4. The importance of rotational spectral study is that we can determine the mass of the atom forming the molecules bond length of the molecule angular momentum (D) molecular structure 3. The radiation emitted in rotational spectrum lies in visible region near-infrared region ultraviolet region (D) audible region 4. The selection rule for transition in rotational spectra is J 0 J J (D) J, 5. The spacing between two successive Stokes lines is dependent on rotational quantum number J independent of J dependent directly on the MI of the molecules (D) dependent on the frequency of the lines 6. Two photons approach each other. Their relative velocity is 0 c c (D) c. Qèo > o àºã¹ š ì Û ìo¹ P ¹ç Œ Òº &Òü ë &¹ ë=ìa "à³¹à "oå Kk >A à¹ã š¹³àoåp [º¹ ¹ [>o Ú A ¹ìt šà[¹ "oå¹ Þê >îƒq š[¹³àš A ¹ìt šà[¹ ëa ï[oa ¹ì K š[¹³àš A ¹ìt šà[¹ (D) "oå¹ Kk > ">åîþê à> A ¹ìt šà[¹ 3. Qèo > o àºã ë=ìa [>@Îõt [ [A ¹o ë "e ìº [ ¹à\ A ì¹ t à Òº ƒõå ³à> "e º [>A i t ã " ìºà[òt "e º "[t ì P >ã "e º (D) Åøç [t ì àk "e º 4. Qèo > o àºã¹ ëû ìy i öà>ô[\å> Î}yû à z [> àw ì>¹ Îèy[i Òº J 0 J J (D) J, 5. š¹ š¹ ƒå[i ëð àa Î ë¹j๠" z t ã óò àa à \àúkà Qèo > ëa àúà i à³ Î}J à J-&¹ l üš¹ [> ¹Å㺠J [>¹ìšÛ "oåp [º¹ \Øl t à à³ìa ¹ l üšì¹ ιàÎ[¹ [> ¹Å㺠(D) ë¹jàp [º¹ A šàìs ¹ l üšì¹ [> ¹Å㺠6. ƒå[i ëó ài > A [oa à &ìa "šì¹¹ [ƒìa "Nøι Òìº t à샹 "àìš[û A ë K Òì 0 c c (D) c

5 /9 5 [ P.T.O. 7. Frame S moves along the positive X -direction relative to S-frame. A rod placed along Y -axis and observed from S-frame appears contracted elongated unchanged 7. S ëóø ³[i S ëóø ì³¹ ÎàìšìÛ >àua X-"Û ¹à ¹ K[t Å㺠ú &A [i ¹l Y -"Û ¹à ¹ Ñ à[št "àìá & } S-ëóø ³ Òìt l üòà š ì Û o A ¹à Òìº ³ì> Òì ¹l [i ¹ ë > íƒq ÒùàÎ šàìzá íƒq õ[ ý šàìzá íƒq "š[¹ [t t "àìá 8. In Debye s theory of specific heat of solids, the atomic oscillations obey MB statistics FD statistics BE statistics 9. Miller indices refer to two perpendicular planes in a crystal a particular plane in a crystal a set of parallel planes in a crystal 0. Which of the following does not obey Fermi-Dirac distribution law? Electron Radiation Proton (D) Neutron. The electron emitted in beta radiation originates from inner orbits of atoms free electrons existing in nuclei decay of a neutron in nuclei (D) photon escaping from nucleus 8. A [k > šƒàì= ¹ "àìš[û A t àš Î š[a t [l àòü t w ">åîàì¹ ëa à> "ào[ A Ñš ƒ> ë Î}J àt w ë³ì> W ìº t à Òº MB FD BE 9. [³ºà¹ ÎèW A à¹à à ë àc àì>à ÒÚ t à Òº &A [i ëa ºàìι ƒå[i º àì " [Ñ t t º &A [i ëa ºàìι &A [i [>[ƒ Ê t º &A [i ëa ºàìι &A P Zá γà z¹àº t º 0. >ãìw ¹ ëa à>ô ëû ìy ó à[³ -[l ¹àA Î}J àt w ³à> ÒÚ >à? ÒüìºC ö> [ [A ¹o ëšøài > (D) [>l üi ö>. [ i à [>@ιìo ë ÒüìºC ö> [>K t ÒÚ t ๠l ü;îñ º Òº š¹³àoå¹ "à z¹ão A Û š= [>l ü[aã ÚàìÎ " [Ñ t ³åv û ÒüìºC ö> [>l ü[aã ÚàìÎ [>l üi öì>¹ [ Qi > (D) [>l ü[aã ÚàÎ Òìt ëó ài > A [oa ๠³å[v û ºà

6 /9 6. The half-life period of a radioactive element X is same as the mean life time of another radioactive element Y. Initially both of them have the same number of atoms. Then X and Y have the same decay rate initially X and Y decay at the same rate always Y decays at a faster rate than X (D) X decays at a faster rate than Y 3. The magnetic moment of a revolving electron around the nucleus varies with principal quantum number n as n. ëa à> ët \[ÑI Ú ë³ïº X-&¹ " àúå "š¹ &A [i ët \[ÑI Ú ë³ïº Y-&¹ KØl "àúå¹ Î³à> ú l ü ìú¹ šøà¹[ ±A š¹³àoå Î}J à γà> Òìº X & } Y l ü ìú¹ šøà¹[ ±A " Û ìú¹ Ò๠γà> X & } Y l ü ÚÒü Î ƒà γÒàì¹ " Û [Út ÒÚ X "ìšû à Y ç t Òàì¹ " Û [Út ÒÚ (D) Y "ìšû à X ç t Òàì¹ " Û [Út ÒÚ 3. [>l ü[aã Úàìι W tå [ƒ ìa Qèo >¹t ëa à> ÒüìºC öì>¹ ëw ï A à³a ³åJ ëa àúà i à³ Î}J à n-&¹ Îàì= ë [>Úì³ š[¹ [t t ÒÚ t à Òº n n n n (D) n 4. The magic numbers for any stable nuclei are, 8, 50, 8, 0, 6, 8, 0, 50, 8, 6, 8, 6, 50, 0, 6 (D), 8, 6, 50, 8, 0 5. Which of the following is not used as moderator in nuclear reactor? Heavy water Graphite Beryllium (D) Cadmium n (D) n 4. ëa à> Îå[Ñ t [>l ü[aã Úàìι ëû ìy ³ à[\a Î}J àp [º Òº, 8, 50, 8, 0, 6, 8, 0, 50, 8, 6, 8, 6, 50, 0, 6 (D), 8, 6, 50, 8, 0 5. [>l üaã ãú Wå Àãìt [>ì³ ¹ ëa à> šƒà= [i ³ ƒ>a [ÒÎàì Òê t ÒÚ >à? à¹ã \º Nøàó àòüi ë [¹[ºÚà³ (D) A àl [³Úà³

7 /9 7 [ P.T.O. 6. A circuit which simply shifts the output waveform to a different d.c. level is called clamper circuit clipper circuit rectifier circuit 6. ë t >ã "àl üi šåi t ¹U šøaõ [t ìa Ç å³ày "> d.c. ëºì ìº Ñ à>à z[¹t A ì¹ t à Òº AÃ à šà¹ t >ã Aà ãšà¹ t >ã &A ³åJãA à¹a t >ã 7. Ripple factor for a full-wave rectifier is (D) The average voltage of a half-wave rectifier is V m / V m / V m / 9. A semiconductor device whose conductivity increases in proportion to the intensity of incident light is called LED LDR SCR 30. In which quadrant of I V characteristic graph, the solar cell operates? st nd 3rd (D) 4th 7. šèo t ¹U &A ³åJãA à¹ìa ¹ ëû ìy [¹šº P oàìs ¹ ³à> Òº (D) " t ¹U &A ³åJãA à¹ìa ¹ KØl ë àìâi ì\¹ ³à> Òº V m / V m / V m / 9. ë ¹ìo¹ " š[¹ àòã [l àòüìî¹ ëû ìy "àš[t t "àìºà¹ t ã øt ๠Îàì= š[¹ à[òt à γà>åšàìt õ[ ý šàú t à Òº LED LDR SCR 30. I V í [ÅÊ ëºj[w ìy¹ ë šàìƒ ëîï¹ìa àè A à Û ³ =àìa t à Òº šø=³ [ t ãú tõ t ãú (D) W tå =

8 / The stability factor of a transistor circuit is given by di CO S di C 3. i öà>[\ð ¹ t >ã¹ Ð à[ [º[i P oàs Òº di CO S di C S di C di CO S di C di CO S di C di E S di C di E (D) S ( ) di C di B (D) S ( ) di C di B 3. When a CE transistor is cut off, then the maximum collector current flows maximum voltage appears across the load resistor maximum voltage appears across the collector (D) minimum voltage appears across the collector 33. In an FM signal, if the modulation index is increased, the required bandwidth will increase decrease remain constant (D) increase or decrease 34. A multiplexer has multiple inputs and a single output has a single input and multiple outputs stores data in multiple bits (D) multiplies four 4-bit words 3. J> &A [i CE i öà>[\ð ¹ [áä ÒìÚ àú, t J> Îì àzw A àìºc ¹ šø àò šà*úà àú ëºàìl ¹ šøà zãú [ Î à[ A ÒÚ A àìºc ¹-&¹ šøà zãú [ Î à[ A ÒÚ (D) A àìºc ¹-&¹ šøà zãú [ Î [>³ ÒÚ 33. FM [ÎK>à캹 ëû ìy [ƒ ³lå ìºå> P oàs õ[ ý A ¹à ÒÚ, t ì šøìúà\>ãú à l üòülô = õ[ ý šàì ÒùàÎ šàì øç A =àa ì (D) õ[ ý à ÒùàÎ šàì 34. ëa à> ³à[Âi ìšãgà¹-&¹ ëû ìy &A à[ A Òü>šåi & } &A [i ³ày "àl üi šåi =àìa &A [i ³ày Òü>šåi & } &A à[ A "àl üi šåi =àìa &A à[ A [ iô [ÒÎàì t = Î[e t =àìa (D) 4-[ i &¹ W à¹[i *Úàl ìa P o> A ¹à ÒìÚ =àìa

9 /9 9 [ P.T.O. 35. A master-slave flip-flop is made up of two flip-flops connected in series two flip-flops connected in parallel a D-latch 36. If f and f are the st and nd principal focal lengths of a thin lens and n and n are the refractive indices of surrounding medium and material of lens respectively, then f / f n n n / n n/ n 37. In case of curved refracting surface, Lagrange s law is ny sin n y sin ny cos n y cos ny tan n y tan where the symbols have their usual meanings. 38. The correct expression for power P of a spherical surface is given by n n R n n v u n n R where n and n are refractive indices of surrounding medium and material of surface respectively. 35. ëa à> ³àÐ à¹-ëñã [óã š-óã š ³èºt ëåøoã γ àìú Î} åv û ƒå[i [óã š-óã š γà z¹àº γ àìú Î} åv û ƒå[i [óã š-óã š &A [i D-º àwô 36. ëa à> šàt ºà ëºìx¹ šø=³ * [ t ãú ³åJ ëó àa àìî¹ ëó àa àî íƒq f * f. [ƒ šà[¹šà[å«a * ëºìx¹ l üšàƒàì>¹ šø[t ιàS =àyû ì³ n * n ÒÚ, t ì f / f n n n / n n/ n 37. ëa à> yû t 캹 šø[t ιo Î}yû à z º àkì¹g-&¹ Îèy[i Òº ny sin n y sin ny cos n y cos ny tan n y tan ë Jàì> [W Òû P [º šøw [ºt "= Ò> A ì¹ ú 38. ëa à> ëkàºàa ๠t 캹 Û ³t à P-&¹ Î[k A ¹à[ųàºà[i Òº n n R n n v u n n R ë Jàì> n & } n Òº šà[¹šà[å«a ³à ³ * ëkàºàa ๠t 캹 l üšàƒàì>¹ šø[t ιàS ú

10 / Two thin converging lenses of powers 5D and 4D are placed coaxially 0 cm apart. The power of the combination is 7D 7D 5D (D) 9D 40. The distance between two nodal points equals the distance between the two conjugate points two focal points two principal points 4. The basic difference between fringe produced in biprism and Lloyd s mirror is that in biprism, central fringe is dark and in Lloyd s mirror, it is bright both central fringes are bright in biprism, central fringe is bright while it is dark in Lloyd s mirror (D) both central fringes are dark 4. The diameters of bright fringes formed in Newton s ring arrangement are proportional to the square root of odd natural numbers square root of all natural numbers square root of even natural numbers 39. 5D * 4D Û ³t àî šä ƒå[i šàt ºà "[ Îà¹ã ëºxìa γàÛ ãú àì š¹ñš¹ Òìt 0 cm ƒèì¹ Îàì>à Òº ú &ìû ìy åoµ ëºìx¹ Û ³t à Òì 7D 7D 5D (D) 9D 40. ƒå[i ë>àl ຠ[ ƒå¹ ³ t 㠃蹜 ƒå[i ">å Þê ã [ ƒå¹ ³ t ã ƒè¹ìœ¹ γà> ƒå[i ëó àa àî [ ƒå¹ ³ t ã ƒè¹ìœ¹ γà> ƒå[i ³åJ [ ƒå¹ ³ t ã ƒè¹ìœ¹ γà> 4. àòü[šø\³ & } ºìÚl ƒš ìo ÎõÊ š[i ¹ ³ì ë³ï[ºa šà= A Òº àòü[šø\ì³¹ ëû ìy ëa ƒøãú š[i "Þê A ๳ú & } ºìÚl ƒš ìo¹ ëû ìy t à l ü^º l ü Ú ëû ìyòü ëa ƒøãú š[i l ü^º àòü[šø\ì³¹ ëû ìy ëa ƒøãú š[i l ü^º & } ºìÚl ƒš ìo¹ ëû ìy t à "Þê A ๳ú (D) l ü Ú ëû ìyòü ëa ƒøãú š[i "Þê A ๳ú 4. [>l üi > [¹} Ñ àìt šøàœ l ü^º š[i ¹ àî [ ì\àøl Ñ à à[ A Î}J ๠K ³è캹 γà>åšà[t A ÎA º Ñ à à[ A Î}J ๠K ³è캹 γà>åšà[t A ë\àøl Ñ à à[ A Î}J ๠K ³è캹 γà>åšà[t A

11 /9 [ P.T.O. 43. The resolving power of a telescope is given by D (D) D D D where D is the diameter of the objective of telescope. 44. The dispersive power of a grating is directly proportional to the order of spectrum directly proportional to the square of order of spectrum inversely proportional to the order of spectrum 45. The focal length of a zone plate is given by rm fm m fm fm rm m m rm where r m radius of mth zone. 46. For negative crystal E-waves move faster than O-wave E-waves and O-waves move in same speed E-waves move slower than O-wave 43. ëi [ºìÑHàìš¹ ëû ìy [¹Î[ } Û ³t à Òº (D) D D D D ë Jàì> D Òº ëi [ºìÑHàìš¹ " ì\[c ëºìx¹ àî ú 44. ëa à> ënø[i }-&¹ [ Záå¹o Û ³t à Òº o àºã¹ yû ì³¹ ³àì>¹ γà>åšà[t A o àºã¹ yû ì³¹ ³àì>¹ ìk ¹ γà>åšà[t A o àºã¹ yû ì³¹ ³àì>¹ Ñzà>åšà[t A 45. ë\à> ëšãìi ¹ ëû ìy ëó àa àî íƒq Òº fm fm fm rm m rm m m rm ë Jàì> r m Òº mt ³ ë\àì>¹ àîà ú 46. oàua ëa ºàìι ëû ìy E-t ¹UP [º O-t ¹U ë=ìa ç t K³> A ì¹ E-t ¹U & } O-t ¹U &A Òü ë ìk K³> A ì¹ E-t ¹UP [º O-t ¹U "ìšû à A ³ ë ìk K³> A ì¹

12 /9 47. Light waves travel in vacuum along the X-axis. Which of the following may represent the wavefronts? X C Y Z C C (D) X Y Z C 48. A point source of light is placed at a distance of f from a converging lens of focal length f. The intensity on the other side of the lens is maximum at a distance f between f and f f (D) more than f 49. Two concave lenses L and L are kept in contact with each other. If the space between the two lenses is filled with a liquid of smaller refractive index, the magnitude of the focal length of the combination becomes undefined remains unchanged decreases (D) increases 50. If a glass prism is dipped in water, its dispersive power increases decreases does not change (D) may increase or decrease 47. "àìºàa t ¹U Åè> ³à ì³ X-"Û ¹à ¹ K[t Å㺠ú [>ìw ¹ ëa à> γãA ¹o[i &A [i t ¹U³åJ [>ìƒ Å A ¹ì? X C Y Z C C (D) X Y Z C 48. f ëó àa àî íƒìq ¹ ëa à> "[ Îà¹ã ëºx Òìt f ƒè¹ìœ ëa à> "àìºàa l ü;îìa ¹àJà Òº, ëºìx¹ "š¹ šàå«òìt ë [ ƒåìt Îì àzw t ã ø "àìºà ëƒjà àì t à " Ñ à> A ¹ì f ƒè¹ìœ f * f ƒè¹ìœ¹ ³àc Jàì> f ƒè¹ìœ (D) f "ìšû à ë Åã ƒè¹ìœ 49. L * L ƒå[i " t º ëºxìa &ìa "šì¹¹ Î}ÑšìÅ ¹àJà Òº ú ëºx ƒå[i ¹ ³àc Jàì> A ³ šø[t ιàìS ¹ ëa à> t ¹º ¹àJà Òìº Î³Nø Ñ à[i ¹ ëó àa àî íƒq š[¹³àšì àk Òì >à "š[¹ [t t =àa ì ÒùàÎ šàì (D) õ[ ý šàì 50. Aò àìw ¹ ít ¹ã [šø\³ìa \ìº lå àìº, &¹ [ Záå¹o Û ³t à õ[ ý šàì ÒùàÎ šàì š[¹ [t t Òì >à (D) õ[ ý à ÒùàÎ šàì

13 /9 3 [ P.T.O. 5. A particle undergoes SHM with a time period of seconds. In how much time will it travel from its mean position to a displacement equal to half of its amplitude? second 3 second 4 second (D) 6 second 5. &A [i A oà ιºìƒàºK[t Î šä A ¹ìá ú l üò๠š àúa ຠëîìa r Òìº A t γìÚ l üòà K[t ¹ ³ [ ƒå Òìt " ý [ Ñzàì¹¹ γà> ιo ëƒjàì? ëîìa r 3 ëîìa r 4 ëîìa r (D) 6 ëîìa r 5. The phenomenon of beats can take place for longitudinal waves only for transverse waves only for both longitudinal and transverse waves (D) for sound waves only 53. The speed of sound in a medium depends on the elastic property but not on the inertia property the inertia property but not on the elastic property the elastic property as well as the inertia property (D) neither the elastic property nor the inertia property 54. A tuning fork sends sound waves in air. If the temperature of the air increases, which of the following parameters will change? Displacement amplitude Frequency Wavelength (D) Time period 5. Ñ ¹A š Îõ[Ê ¹ Qi >à šøt Û A ¹à àú Ç å³ày ">åîƒq t ¹ìU¹ ëû ìy Ç å³ày ">åšøñ t ¹ìU¹ ëû ìy ">åîƒq * ">åšøñ t ¹ìU¹ ëû ìy (D) Å t ¹ìU¹ ëû ìy 53. ëa à> ³à ì³ Åì ¹ ë K ³à ì³¹ [Ñ [t Ñ àša ì³ ¹ l üšì¹ [> ¹ A ¹ìº* \Øl t à ì³ ¹ l üšì¹ [> ¹ A ì¹ >à ³à ì³¹ \Øl t à ì³ ¹ l üšì¹ [> ¹ A ¹ìº* [Ñ [t Ñ àša ì³ ¹ l üšì¹ [> ¹ A ì¹ >à ³à ì³¹ [Ñ [t Ñ àša * \Øl t à ì³ ¹ l üšì¹ [> ¹Å㺠(D) ³à ì³¹ [Ñ [t Ñ àša * \Øl t à ³ ëa àì>à[i ¹ l üšì¹òü [> ¹Å㺠>Ú 54. àúå ³à ì³ ëa à> Îå¹ÅºàA à Òìt Å [>K t ÒìZá ú [ƒ àúå¹ t àš³àyà õ[ ý šàú t ì ëa à> ¹à[Å[i ¹ š[¹ t > Òì? ιo [ Ñz๠A šàs t ¹UîƒQ (D) š àúa àº

14 / Which of the following equations represents a wave travelling along y-axis? x Asin( ky t ) y Asin( kx t ) y Asinky cos t (D) y Acosky sin t 56. When a source of sound of frequency f crosses a stationary observer with a speed v s (v s speed of sound v ), the apparent change in frequency f is given by fvs v fv fs fv vs (D) fvs v 57. The ratio of energy density in a stationary wave to that of a progressive wave is In a struck string, the amplitude of n-th harmonic is proportional to 3 /n /n /n (D) n / 59. Sound emitted by a struck string compared to that emitted by a plucked string will be richer in harmonics poorer in harmonics equal in harmonics 55. >ãìw ¹ ëa à> γãA ¹o[i y-"û ¹à ¹ "NøKà³ã t ¹UìA šøa àå A ì¹? x Asin( ky t ) y Asin( kx t ) y Asinky cos t (D) y Acosky sin t 56. f A šàìs ¹ ëa à> Å l ü;î v s ë ìk ( v s Åì ¹ ë K v ) ëa à> [Ñ ¹ ëåøàt àìa "[t yû ³ A ¹ìº A šàìs ¹ "àšàt š[¹ t > f Òì fvs v fv fs (D) fv vs fvs v 57. Ñ à>åt ¹U * W ºt ¹ìU¹ Å[v û Q>쌹 ">åšàt Òº Ð öàaô [Ð ö}-&¹ ëû ìy nt ³ Òàì³ à[>a -&¹ [ Ñz๠[>³ [º[Jt ëa à>[i ¹ Îàì= γà>åšà[t A? 3 /n /n /n (D) n / 59. šãàaô l [Ð ö} "ìšû à Ð öàaô [Ð ö} ë=ìa [>K t Å "[ A Î}J A Òà¹ì³à[>ìA γõ ý Òì A ³ Î}J A Òà¹ì³à[>ìA γõ ý Òì γà> Î}J A Òà¹ì³à[>ìA γõ ý Òì

15 /9 5 [ P.T.O. 60. Young-Helmholtz law is valid in case of plucked string struck string both plucked and struck strings 60. ÒüÚ}-ëÒµìÒà;\ô Îèy[i ëa à> ëû ìy šøì à\? šãàa lô [Ð ö}-&¹ ëû ìy Ð öàaô [Ð ö}-&¹ ëû ìy šãàa lô * Ð öàaô [Ð ö} l ü ìú¹ ëû ìy 6. If E k and E p represent the average values of the kinetic energy and potential energy densities in the sound wave, then Ek E p Ek E p Ek E p 6. Sound emitted from stringed instrument will be richer in harmonics when the motion is started by plucking striking bowing (D) plucking or bowing 63. The safe noise level as recommended by WHO is db db 0 40 db (D) db 64. A relation between loudness and intensity of a musical sound is given by Weber-Fechner law Eyring s formula Millington s formula (D) Helmholtz s law 6. Å t ¹ìU¹ ëû ìy E k * E p à¹à [ƒ KØl K[t Å[v û ¹ Q>Œ * KØl [Ñ [t Å[v û ¹ Q>Œ šøa à[åt ÒìÚ =àìa t ì Ek E p Ek E p Ek E p 6. t ๠åv û ëa à> Å l ü;î Òìt "[ A Î}J A Òà¹ì³à[>ìA γõ ý Å [>K t Òì [ƒ l üòàìt šøà=[³a K[t Îõ[Ê A ¹à ÒÚ šãà[a }-&¹ ³à ì³ Ð öàòü[a } à "àqàìt ¹ ³à ì³ ë à[ú}-&¹ ³à ì³ (D) šãà[a } "= à ë à[ú}-&¹ ³à ì³ 63. WHO à¹à [> à[¹t [>¹àšƒ >ìúîô ëºì º Òº db db 0 40 db (D) db 64. ëa à> Åøç [t ³ å¹ Åì ¹ šøà º * t ã øt à Î š[a t Îèy[i Òº *ìú à¹-ëó Wô >๠Îèy "àòü[¹}-&¹ Îèy [³[º}i >-&¹ Îèy (D) ëòâµìòà;\ô-&¹ Îèy

16 / In case of forced vibration, near about the resonant frequency, the motion is said to be stiffness controlled inertia controlled resistance controlled (D) mass controlled 66. For a system undergoing forced vibration, if the damping in the system is small, then for low frequencies the vibration is said to be resistance controlled mass controlled inertia controlled (D) stiffness controlled 67. In case of forced vibration, if 0 is the undamped natural frequency and, are the two half-power frequencies, then 0 ( ) 0 0 (D) 0 ( ) 68. If a particle executes SHM with a frequency, its kinetic energy varies with a frequency (D) 65. š¹ Å A šì>¹ ëû ìy, ">å>àƒã A šàìs ¹ A àáàa à[á "e 캹 K[t ìa ºà Òì [Ð ó ì>î A >ìi öàºl \Øl t à A >ìi öàºl ë¹à A à¹à A >ìi öàºl (D) ¹ à¹à A >ìi öàºl 66. š¹ Å A šì>¹ ëû ìy [ƒ [ÎìÐ ì³¹ " ³ ƒ> Jå A ³ ÒÚ, t ì [>³ ³àì>¹ A šàìs ¹ \> A š>ìa ºà Òì ë¹à A A >ìi öàºl ¹ A >ìi öàºl \Øl t à A >ìi öàºl (D) [Ð ó ì>î A >ìi öàºl 67. š¹ Å A šì>¹ ëû ìy " ³ ƒ>òã> Ñ à à[ A A šàs 0 & } * [ƒ " Û ³t ๠A šàs ÒÚ, t ì 0 ( ) 0 0 (D) 0 ( ) 68. ëa à> A oà A šàìs ¹ ιº ëƒàºk[t Î šä A ¹ìº, l üò๠K[t Å[v û ¹ A šàs Òì (D)

17 /9 7 [ P.T.O. 69. Two masses m and 3m are attached to the two ends of spring of spring constant s. The time period of its oscillation is m / s 69. s [Ñß} øç A [ [ÅÊ ëa à> [Ñß}-&¹ ƒåšøàì z m * 3m ³àì>¹ ƒå[i ¹ åv û A ¹à Òº ú ÒüÒ๠A šì>¹ ëƒàº>a ຠҺ m / s m / s 4m / s (D) 3m / 4s m / s 4m / s (D) 3m / 4s 70. If the momentum of a particle executing SHM is plotted against its displacement, the curve would be a/an straight line ellipse parabola (D) sine curve 7. A damped harmonic oscillator of natural frequency 0 is driven by a harmonic force of frequency. Then in the steady state the oscillator will oscillate with frequency 0 only frequency only both the frequencies 0 and (D) frequencies 0 7. According to van der Waals gas equation, critical constant RTc / PcVc is equal to 8 8/3 8 3 (D) 70. ιº ëƒàºk[t Î šä ëa à> A o๠¹ì K * ιìo¹ ³ì ëºj[w y "S > A ¹ìº t à Òì &A [i ιºì¹Jà l üš õv "[ õv (D) ÎàÒü> ëºìj¹ > àú 7. A šàs [ [ÅÊ ëa à> ëƒàºk[t Î šä º à¹à 0 Ñ à à[ A A šàìs ¹ " ³[ ƒt ëƒàº> Î šàƒ> A ¹à ÒìZáú Îà³ à Ñ àú ëƒàºa [i Ç å³ày 0 A šàìs Aò àšì Ç å³ày A šàìs Aò àšì 0 * l ü Ú A šàìs Òü Aò àšì (D) 0 A šàìs Aò àšì 7. à> l ๠*ÚàºÎ K àî γãA ¹o ">åîàì¹ ÎS i øç A RT / P V -&¹ ³à> Òº 8 8/3 8 3 (D) c c c

18 / Choose the wrong statement from the following. Joule expansion always produces a cooling effect. Joule-Thomson effect always a cooling effect produces. In Joule expansion, only internal work is done. (D) In Joule-Thomson expansion, external work is done on the gas as well as by the gas. 74. The kinetic energy per unit volume of a perfect gas is equal to (D) 3 P 3 P P 3 P where P is pressure. 75. For a gas, the r.m.s. speed at 800 K is four times the value at 00 K twice the value at 00 K half the value at 00 K (D) same as at 00 K 76. Net entropy change of a system in Carnot s cycle is zero positive negative (D) more than 73. [>ì³ ¹ ëa à> l ü[v û [i yç [i šèo? \åº šøîà¹o Î ƒà Åãt ºt à Îõ[Ê A ì¹ ú \åº-=³î> šø[yû ÚàÚ Î ƒà Åãt ºt à Îõ[Ê A ì¹ú \åº šøîà¹ìo Ç å³ày " z¹ão A à A ¹à ÒÚú (D) \åº-=³î> šø[yû ÚàÚ K àìî¹ l üšì¹ & } K àî A tõ A à[ò A A à A ¹à ÒÚú 74. &A A "àút ì>¹ àñz K àìî¹ K[t Å[v û Òº (D) 3 P 3 P P 3 P ë Jàì> P Òº W àš ú K t àš³àyàú K àìî¹ r.m.s. ë K Òº 00 K t àš³àyàú K àìî¹ r.m.s. ë ìk¹ W ๠P o 00 K t àš³àyàú K àìî¹ r.m.s. ë ìk¹ [ P o 00 K t àš³àyàú K àìî¹ r.m.s. ë ìk¹ "ì A (D) 00 K t àš³àyàú K àìî¹ r.m.s. ë ìk¹ γà> 76. A àì> à Òü[gì> ë³ài &>i ö[š¹ š[¹ t > Òº Åè> >àua oàua (D) "ìšû à ë Åã

19 /9 9 [ P.T.O. 77. Choose the correct option. All quasi-static processes are reversible All reversible processes are quasi-static Adiabatic process is quasi-static 77. Î[k A l üv ¹[i [W [Òû t A ¹ ú ÎA º ëa àúà[î-ð à[i A šø[yû Úà l ü ³åJã ÎA º l ü ³åJã šø[yû Úà ëa àúà[î-ð à[i A ¹ç ý t àš šø[yû Úà Òº ëa àúà[î-ð à[i A 78. Which of the following is intensive variable? Area Entropy Temperature (D) Volume 79. Which of the following relations represents Clausius theorem? dq 0 T R 78. >ãìw ¹ ëa à>[i Òü>ìi >[Î W º¹à[Å? ëû yó º &>i ö[š t àš³àyà (D) "àút > 79. >ãìw ¹ ëa à>[i Aà [ÎÚàÎ l üššàƒ ìa ë àc àú? dq 0 T R dq 0 T R dq 0 T R (D) dq 0 T R dq 0 T R where the symbols have their usual meanings. 80. The specific heat of saturated vapour pressure is zero positive negative (D) sometimes positive and sometimes negative (D) dq T R 0 dq T R 0 ë Jàì> [W Òû P [º šøw [ºt "= Ò> A ì¹ ú 80. Î šõv û àíšw àìš¹ "àìš[û A t àš Òº Åè> >àua oàua (D) A Jì>à >àua & } A Jì>à oàua

20 / The ratio of the adiabatic and isothermal elasticities of a gas is ES / ET / (D) / where is the ratio of specific heats. 8. Gibbs potential is defined as G U PV TS G U PV TS G U PV TS (D) G U PV TS where symbols have their usual meanings. 83. Helmholtz free energy function is defined by F U TS F U TS F U PV (D) F U PV TS where symbols have their usual meanings. 84. Four thermodynamic potentials are pressure, volume, temperature and internal energy function pressure, volume, internal energy and Helmholtz function internal energy function, temperature, Helmholtz function and Gibbs function (D) internal energy function, Helmholtz function, enthalpy and Gibbs function 85. A mixture of n moles of monatomic gas and n moles of diatomic gas has 5. In this case n n n n n n (D) n 3n 8. K àìî¹ ¹ç ý t àš * Îì³àÌ [Ñ [t Ñ àša ìú¹ ">åšàt Òº E / E / (D) / S T ë Jàì> Òº "àìš[û A t àš ìú¹ ">åšàt ú 8. [K Îô [Ñ [t Å[v û "ìšû A [i Òº G U PV TS G U PV TS G U PV TS (D) G U PV TS ë Jàì> [W Òû P [º šøw [ºt "= Ò> A ì¹ ú 83. ëòâµìòà;\ô ³åv û Å[v û ¹ "ìšû A [i Òº F U TS F U TS F U PV (D) F U PV TS ë Jàì> [W Òû P [º šøw [ºt "= Ò> A ì¹ ú 84. W à¹[i t àšk[t [ ƒ ๠ëšàìi >[ÎÚàºP [º Òº W àš, "àút >, t àš³àyà & } " z¹ão Å[v û "ìšû A W àš, "àút >, " z¹ão Å[v û & } ëòâµìòà;\ô "ìšû A " z¹ão Å[v û "ìšû A, t àš³àyà, ëòâµìòà;\ô "ìšû A & } [K Îô "ìšû A (D) " z¹ão Å[v û "ìšû A, ëòâµìòà;\ô "ìšû A, &>ô=àº[š & } [K Îô "ìšû A 85. n ë³àº &A š¹³àoåa K àî * n ë³àº [ š¹³àoåa K àìî¹ [³Åøìo¹ 5, &ìû ìy n n n n n n (D) n 3n

21 /9 [ P.T.O. 86. During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio for the gas is 3/ 5/3 (D) 4/3 87. The relation between U, P and V for an ideal gas is U 3 PV. The gas is monatomic diatomic polyatomic (D) either monatomic or diatomic 86. ëa à> ¹ç ý t àš šø[yû ÚàÚ ëƒjà ëkº ë K àìî¹ W àš l üò๠š¹³ l üì t ๠Q>ìA ¹ γà>åšà[t A ú &ìû ìy K àìî¹ "àìš[û A t àš ìú¹ ">åšàt Òº 3/ 5/3 (D) 4/3 87. ëa à> "àƒå K àìî¹ ëû ìy U, P & } V -&¹ ³ì Î ša Òº U 3 PV, &ìû ìy K àî[i Òº &A š¹³àoåa [ š¹³àoåa š¹³àoåa (D) &A š¹³àoåa à [ š¹³àoåa 88. If moles of an ideal monatomic gas at temperature T 0 is mixed with 4 moles of another ideal monatomic gas at temperature T 0, then the temperature of the mixture is (D) 3 T T 0 4 T T Heat is supplied to a diatomic gas at constant pressure. The ratio of Q : U : W will be 5 : 3 : 5 : : 3 7 : 5 : (D) 7 : : T 0 t àš³ày๠ëa à> "àƒå ë³àº &A š¹³àoåa K àîìa T 0 t àš³ày๠"> &A [i "àƒå 4 ë³àº &A š¹³àoåa K àìî¹ Îàì= [³[Åøt A ¹à Òº ú &ìû ìy [³Åøìo¹ t àš³àyà Òì (D) 3 T T 0 4 T T [Ñ ¹ W àìš ëa à> &A [i [ š¹³àoåa K àìî¹ t àš šøƒà> A ¹à Òº ú &ìû ìy Q : U : W Òì 5 : 3 : 5 : : 3 7 : 5 : (D) 7 : : 5

22 /9 90. In the Ingenhausz experiment, the thermal conductivity k and length L of the rod up to which wax melts are related as k L k L constant constant k constant L (D) kl constant 9. Magnetic flux has the dimensions [ ML T I ] [ MLT I ] [ ML T I ] (D) [ ML T I ] 9. Which one of the following is not a source of magnetostatic field? An accelerated charge A steady current carrying wire A bar magnet (D) An electric field varying linearly with time 93. The magnetic field intensity B of a small current loop at a large distance r varies as r 3 r r 90. Òü>ì\>-Òàì\¹ š¹ãû àú Òê t ƒìr ¹ t àš š[¹ à[òt às k & } ƒìr ¹ ë íƒq š z ë³à³ Kìº àú, t ๠íƒq L Òìº k L k L k L øç A øç A øç A (D) kl øç A 9. Wå A ãú óã àìg¹ ³àyà Òº [ ML T I ] [ MLT I ] [ ML T I ] (D) [ ML T I ] 9. [>ì³ ¹ ëa à>[i [Ñ [t Wå ìa ¹ l ü;î >Ú? Œ¹o åv û "à à> [Ñ ¹ šø àò Î šä t [Øl ; àòã t ๠&A [i ƒr Wå A (D) &A [i t [Øl ;ìû y à γìÚ¹ Îàì= ιºî¹[JA [>Úì³ š[¹ t >Å㺠93. ëa à> Ûå t [Øl ; àòã ý t >ã¹ ƒ¹ç o l üòà ÒÒüìt ƒè¹ t ã ëa à> [ ƒåìt ëw ï A ëû ìy¹ šøà º B, ƒè¹œ r-&¹ Î[Òt &Òü àì š[¹ [t t ÒÚ ë B B B r r 3 r

23 /9 3 [ P.T.O. 94. A magnetic dipole moment m placed in a nonuniform magnetic field B experiences a force ( m B ) m B m B 95. Which one of the following is not a characteristic of magnetostatic field? It is solenoidal It is conservative Flux lines are always closed (D) Net magnetic flux through a closed surface is always zero 96. The vector potential A corresponding to a constant magnetic field B along z-direction can be represented by Bzk 94. ëa à> "γÎw ëw ï A ëû y B-&¹ ³ì ¹[Û t &A [i ëw ï A [ ì³¹ç à³a m A tõ A ">å è t º Òì ( m B ) m B m B 95. [>ìw ¹ ëa à>[i [Ñ t ìw ï A ëû ìy¹ ³ >Ú? ÒüÒà Î[º>ìÚl ຠÒüÒà Î}¹Û ã ëw ï A ºì¹JàP [º Î ƒà ý (D) &A [i ý t 캹 ³ì [ƒìú ë³ài Wå A ãú óã àg Î ƒà Åè> 96. z-"û ¹à ¹ [yû ÚàÅ㺠ëw ï A ëû y B-&¹ Îàì= Î š[a t ë C ¹ ëšàìi >[ÎÚຠA Bzk B ( jx i y ) B ( jx i y ) B i x jy ( ) B i x jy ( ) (D) B jx i y ( ) (D) B jx i y ( ) 97. If the intrinsic magnetic moment of the atoms of a material is not zero, the material must be paramagnetic must be diamagnetic must be ferromagnetic (D) may be paramagnetic or ferromagnetic 97. [ƒ ëa à> šƒàì= ¹ š¹³àoåp [º¹ Òü>[i ö>[îa ëw ï A à³a Åè> >à ÒÚ, t ì šƒà= [i Òì " Å Òü š¹àìw ï A " Å Òü [t ¹ìÆW ï A " Å Òü "ÚìÆW ï A (D) š¹àìw ï A "= à "ÚìÆW ï A

24 / The permanent magnetic moment of the atoms of a material is zero. The material must be diamagnetic must be paramagnetic must be ferromagnetic (D) may be dia-, para- or ferromagnetic 99. Magnetization current can transport charge over macroscopic distances produce Joule heating produce magnetic field 98. ëa à> šƒàì= ¹ š¹³àoåp [º¹ Ñ àúã ëw ï A à³a Åè> Òìº šƒà= [i Òì " Å Òü [t ¹ìÆW ï A " Å Òü š¹àìw ï A " Å Òü "ÚìÆW ï A (D) [t ¹ìÆW ï A, š¹àìw ï A "= à "ÚìÆW ï A 99. ³ àkì>i àòüì\åà> šø àò³àyà "à à>ìa ³ àìyû àìñhà[ša ƒè¹œ š z š[¹ Òo A ¹ìt šàì¹ \åº [yû ÚàÚ t àš l ü;šä A ¹ìt šàì¹ ëw ï A ëû y l ü;šä A ¹ìt šàì¹ 00. The relative permeability of a material is The material must be paramagnetic ferromagnetic diamagnetic 00. ëa à> šƒàì= ¹ l üšàƒàì>¹ "àìš[û A ëw ï A ë ƒ t à šƒà= [i " Å Òü š¹àìw ï A "ÚìÆW ï A [t ¹ìÆW ï A 0. The electric field produced by a uniformly moving charge is conservative non-conservative irrotational 0. Îåȳ àì K[t Å㺠ëa à> "à à> A tõ A ÎõÊ t [Øl ;ìû y Òº Î}¹Û ã "Î}¹Û ã Òüì¹àìi Å>àº

25 /9 5 [ P.T.O. 0. A circular coil of a single turn of thin conducting wire has selfinductance L. If the number of turns is increased to 8, then the new selfinductance would be 8L 64L L /8 (D) L 03. A small wire loop is placed inside a solenoid with its axis perpendicular to the axis of the solenoid. Now, if the current through the solenoid increases with time at a constant rate, the e.m.f. induced in the loop would increase with time decrease with time remain at a constant value (D) be zero 04. A capacitor is charged to a p.d. of 00 V and is then connected across a resistor. It is found that the p.d. decays to 80 V after sec. The p.d. across the capacitor after sec will be 40 V 60 V 64 V 05. A complex current consists of a d.c. of 3 A and an a.c. of 3sin( 00t / 6) A. Its average value will be 8 amp 6 amp 4 5 amp (D) 3 amp 0. &A [i ³ày šàa [ [ÅÊ ëa à> šàt ºà õv àa ๠t àì¹¹ Ñ àì ÅP >às L. [ƒ šàa Î}J à "ài [i A ¹à ÒÚ t ì >tå > Ñ àì ÅP oàs Òì 8L 64L L /8 (D) L 03. &A [i Ûå t à¹aå r ºãìA &A [i Î[º>ìÚìl ¹ " zì¹ &Òü¹ê ìš Îàì>à Òº ë l üò๠"Û Î[º>ìÚìl ¹ "ìû ¹ Îàì= º àì =àa º ú [ƒ Î[º>ìÚìl šø à[òt t [Øl ; γìÚ¹ Îàì= [>[ƒ Ê Òàì¹ õ[ ý ëšìt =àìa t ì Aå r ºãìt "à[ Ê t [Øl ZW àºa º γìÚ¹ Îàì= õ[ ý šàì γìÚ¹ Îàì= ÒùàÎ šàì &A [i [>[ƒ Ê ³àì> [Ñ ¹ =àa ì (D) Åè> Òì 04. &A [i à¹a ìa 00 V [ šøì ìƒ l üäãt A ¹à Òº & } &¹š¹ &A [i ë¹à ìa ¹ Îàì= Î} åv û A ¹à Òº ú ëƒjà ëkº sec šì¹ l üò๠[ šøì ƒ 80 V Òº ú sec šì¹ à¹ìa ¹ [ šøì ƒ Òì 40 V 60 V 64 V 05. ëa à> \[i º šøaõ [t ¹ šø àò³àyàìa 3 A d.c. & } 3sin( 00t / 6) A a.c. šø àò³ày๠γÞìÚ ít ¹ã A ¹à Òº ú šø àò³ày๠KØl ³à> Òì 8 " à[ šú๠6 " à[ šú๠4 5 " à[ šú๠(D) 3 " à[ šúà¹

26 / A pure L-C parallel circuit is impressed with an a.c. source of frequency. If, then the LC circuit reactance will be inductive capacitive resistive (D) zero 07. The interaction energy of an electric dipole of moment P in an external field E is P E P E P E (D) P E 08. The bound volume charge density in a sphere of radius a carrying polarization P Kr is Kr K zero (D) 3K 06. &A [i [ Ç ý γà z¹àº L-C t >ãìa A šàìs ¹ š[¹ t ã t [Øl ZW àºa 캹 l ü;ìî¹ Îàì= Î} åv û A ¹à Òº ú [ƒ t ì t >ã¹ šø[t à à Òì "àì ÅA ãú à¹a ãú ë¹à A ãú (D) Åè> LC ÒÚ, 07. à[ò A t [Øl ;ìû y E-&¹ Î[Òt ëa à> t [Øl ; [ ì³¹ç à³a P -&¹ [³=[ÍI Ú Å[v û Òº P E P E P E (D) P E 08. a àîàì ¹ ëa à> ëkàºìa ¹ ý "à àì>¹ "àút >³à[yA Q>Œ A t Òì, [ƒ ëkàºa [i ¹ ëšàºà¹àòüì\åà> P Kr ÒÚ? Kr K Åè> (D) 3K 09. A dielectric material has non-uniform polarization P. The polarization volume charge density is given by P P P / 0 (D) P / ëa à> š¹àî ƒå [t A ³à ì³¹ "γÎw ëšàºà¹àòüì\åà> P. &ìû ìy ëšàºà¹àòüì\åàì>¹ "àút >³à[yA "à à> Q>Œ Òì P P P / 0 (D) P / 0

27 /9 7 [ P.T.O. 0. Energy density of the electric field produced by a point charge varies with the distance r from the point charge as (D) r 3 r 4 r 6 r. The integral E. dl 0, if the electric field E is caused by a static charge a time-varying magnetic field both and. Electrostatic field is always solenoidal irrotational harmonic in character 0. [ ƒå "à àì>¹ \> r ƒè¹ìœ ÎõÊ t [Øl ;ìû ìy¹ Å[v û Q>Œ. r 3 r 4 r (D) 6 r E. dl 0 Òì, [ƒ t [Øl ;ìû y E [Ñ ¹ "à àì>¹ \> ÎõÊ ÒÚ Î³ìÚ¹ Îàì= ëw ï A ëû ìy¹ š[¹ t ì>¹ \> ÎõÊ ÒÚ * l ü ìú¹ \> ÎõÊ ÒÚ. [Ñ ¹ t [Øl ;ìû y Î ƒàòü Î[º>ìÚl ຠÒüì¹àìi Å>ຠÒà¹ì³à[>A W [¹ìy¹ 3. Potential at a point due to a point charge is V. The charge is doubled and also the distance of the point from the charge is doubled. The new potential will be V / 4V V (D) V 3. &A [i [ ƒå "à àì>¹ ÎàìšìÛ [ V. "à à>ìa [ P o A ¹à Òº & } &áàøl à* "à à> ë=ìa [ ƒå¹ ƒè¹œ [ P o A ¹à Òº ú t ³àì> >tå > [ Òì V / 4V V (D) V

28 / A non-conducting ring of radius r has charge Q. A magnetic field perpendicular to the plane of the ring changes at the rate db / dt. The torque experienced by the ring will be zero Qr db dt Qr db dt (D) r Q db dt 5. Ohm s law is not valid for alternating current capacitor inductor (D) any non-linear circuit element 4. r àîàì ¹ &A [i "š[¹ àòã [¹}-& "à àì>¹ š[¹³ào Q. [¹}-&¹ Îàì= º àì " [Ñ t ëa à> t ìº ëw ï A ìû y db / dt Òàì¹ š[¹ [t t ÒìZáú [¹} A tõ A ">å è t i A Òì Åè> Qr db dt Qr db dt (D) r Q db dt 5. >ãìw ¹ ëa à> ëû ìy *Ò³ Îèy šøì à\ >Ú? š[¹ t ã šø àìò¹ ëû ìy à¹ìa ¹ ëû ìy "àì ÅìA ¹ ëû ìy (D) ëa à> >>-[º[>Ú๠t >ã¹ t [Øl ; šø àìò¹ ëû ìy 6. If battery resistance is zero and each of bridge arms has the same resistance R, then the sensitivity of a Wheatstone bridge is S CV B 8 R 6. ëa à> ÒüìÐ à> øã\ t >ã¹ ài à¹ã¹ ë¹à Åè> & } šø[t à ¹ ë¹à [ƒ R ÒÚ t ì øã\[i ¹ ëî[x[i [ [i ÒÒüì S CV B 8 R S CV B R S CV B R S CV B R S CV B R (D) S CV B 4 R where, C is the galvanometer deflection per unit current and V B is the battery voltage. (D) S CV B 4 R ë Jàì> C Òº &A A šø àò³ày๠ƒ¹ç o K ຠàì>à[³i ๠Aò ài ๠[ ìû š> & } V B Òº ài à¹ã ë àìâi \ ú

29 /9 9 [ P.T.O. 7. Torque acting on a loop of area S and carrying a current I when placed in a uniform magnetic field B is given by IS B B IS ( IS B ) 7. Îåȳ ëw ï A ìû y B ët ¹[Û t I šø àò³àyà- [ [ÅÊ & } S ëû yó º[ [ÅÊ ëa à> t >ã A t õ A ">å è t i A Òì IS B B IS ( IS B ) 8. When a capacitor of capacitance C is charged fully by connecting it across a battery of e.m.f. E, the energy expended by the battery is 8. E t [Øl ZW àºa º [ [ÅÊ ëa à> ài à¹ã¹ Î[Òt C à¹a 윹 &A [i à¹a ìa Î} åv û A ì¹ Î šèo àì "à[òt A ¹à Òº ú ài à¹ã A tõ A [Út Å[v û Òº CE CE CE CE CE CE (D) CE (D) CE 9. A dielectric slab is inserted between the plates of an isolated capacitor. The force between the plates will 9. &A [i [ [ZáÄ à¹ìa ¹ šàt ìú¹ ³àc Jàì> ëa à> š¹àî ƒå [t A ³à ³ìA šøì Å A ¹àì>à Òº ú &¹ ó ìº à¹ìa ¹ šàt ƒå[i ¹ ³ì ">å è t º increase õ[ ý šàì decrease remain unchanged (D) become zero ÒùàÎ šàì "š[¹ [t t =àa ì (D) Åè> Òì

30 / Two conducting plates A and B are placed parallel to each other. A is given a charge Q and B a charge Q. The charge that remains outer surface of each plate is Q Q Q Q 0. A & } B ƒå[i š[¹ àòã šàt ìa γà z¹àº àì ¹àJà Òº ú A šàt [i ìa Q "à à> & } B šàt [i ìa Q "à à> ëƒ*úà Òº ú šø[t [i šàìt ¹ àòüì¹¹ šàìå«[ ƒ ³à> "à à> Òº Q Q Q Q Q Q (D) Q (D) Q. The kinetic energy needed to project a body of mass m from the earth s surface to infinity is mgr / 4 mgr / mgr (D) mgr where R is radius of the earth.. Two soap bubbles with radii r and r ( r r) come in contact. Their common surface has a radius of curvature r. Then r r r. m ì¹¹ ëa à> ÑñìA šõ[= ãšõê Òìt "Îã³ ƒè¹ìœ [>ìú ë ìt šøìúà\>ãú K[t Å[v û Òº mgr / 4 mgr / mgr (D) mgr ë Jàì>, R Òº šõ[= ã¹ àîà ú. r & } r àîàì ¹ ( r r) ƒå[i Îà à> åƒô åƒô &ìa "šì¹¹ Î}ÑšìÅ "àîº ú l üòà샹 Îà à¹o t 캹 yû t à àîà r Òìº r r r r rr r r r rr r r r rr r r r rr r r (D) r rr (D) r rr

31 /9 3 [ P.T.O. 3. The correct relation among elastic moduli is y ( ) y ( ) y ( ) where the symbols have their usual meanings. 4. A barometer kept in an elevator accelerating upward reads 76 cm. The air pressure in the elevator is 76 cm <76 cm >76 cm (D) zero 3. [Ñ [t Ñ àša øç A P [º¹ ³ì Î[k A Î ša [i Òº y ( ) y ( ) y ( ) ë Jàì> [W Òû P [º šøw [ºt "= Ò> A ì¹ ú 4. l ü ý ³åìJ Œ¹o åv û ëa à> [ºó ìi ¹[Û t àì¹à[³i àì¹¹ šàk 76 cm. [ºó ìi ¹ " zì¹ àúå¹ W àš Òº 76 cm <76 cm >76 cm (D) Åè> 5. Water rises in a vertical capillary tube up to a length of 0 cm. If the tube is inclined at 45º, the length of water risen in the tube will be 5. l üº àì ¹[Û t ëa à> ía [ÅA >ìº \º 0 cm l üzw t à š z l ük ìt šàì¹ ú [ƒ >º[i ìa 45º ëa àìo "à>t A ¹à ÒÚ, t ì >ìº " [Ñ t \캹 íƒq Òì 0 cm 0 cm 0 cm 0/ cm 6. A 0 cm long capillary tube is dipped in water. The water rises up to 8 cm. If the entire arrangement is put in a freely falling elevator, the length of water column in the capillary tube will be 8 cm 6 cm 0 cm (D) 0 cm 0 cm 0/ cm 6. 0 cm íƒìq ¹ ía [ÅA >ºìA l üº àì \ìº lå àì>à Òº ú \º >캹 ³ì 8 cm l üzw t à š z l ük º ú [ƒ γNø Ñ à[i ìa ³åv û àì št >Å㺠[ºó ìi ¹àJà ÒÚ t ì ía [ÅA >ìº " [Ñ t \캹 íƒq Òì 8 cm 6 cm 0 cm (D) 0 cm

32 / If more air is pushed in a soap bubble, the pressure in it decreases increases remains same (D) becomes zero 8. When an air bubble rises from the bottom of a deep lake to a point just below the water surface, the pressure of the air inside the bubble is less than the pressure outside it increases as the bubble moves up decreases as the bubble moves up 9. A U-tube containing a liquid moves with a horizontal acceleration a along a direction joining the two vertical limbs. The separation between these limbs is d. The difference in their liquid levels is ad/ g ad/ g 7. [ƒ ëa à> Îà à> åƒô åìƒ "à¹* ë Åã š[¹³àìo àúå šøì Å A ¹àì>à ÒÚ, t ì åƒô å샹 " zì¹ W àš ÒùàÎ šàì õ[ ý šàì "š[¹ [t t =àa ì (D) Åè> Òì 8. J> &A [i àúå åƒô åƒô &A [i K ã¹ \ºàÅìÚ¹ t ºìƒÅ ë=ìa \캹 ³åv û šõìë ¹ [k A [>ì³ l üìk "àìî, t J> åƒô å샹 " zì¹ àúå¹ W àš àòüì¹¹ W àš "ìšû à A ³ Òì åƒô åƒô *k ๠Îàì= Îàì= õ[ ý šàì åƒô åƒô *k ๠Îàì= Îàì= ÒùàÎ šàì 9. &A [i t ¹ºšèo U->ºìA l üà >ºƒå[i ¹ γà z¹àìº ">å è [³A [ƒìa a Œ¹ìo à[ t A ¹à Òº ú l üà >ºƒå[i ¹ ³ t 㠃蹜 Òº d. >ºƒå[i ìt t ¹º t 캹 l üzw t ๠šà= A Òì ad/ g ad/ g ad/ g (D) d tan ( a/ g) ad/ g (D) d tan ( a/ g) 30. By a surface of a liquid we mean a geometrical plane like x 0 all molecules exposed to the atmosphere a layer of thickness of the order of 0 8 m (D) a layer of thickness of the order of 0 4 m 30. ëa à> t ¹ìº¹ šõë t º ºìt åc àú x 0 &¹ ³t ëa à> \ à[³[t A t º &³> &A [i t º ๠"oåp [º š[¹ì ìå l ü µåv û "àìá 0 8 (D) 0 4 m ë ì ¹ &A [i t ¹ìº¹ Ñz¹ m ë ì ¹ &A [i t ¹ìº¹ Ñz¹

33 /9 33 [ P.T.O. 3. In the bottom of a vessel with mercury of density, there is a round hole of radius r. At what maximum height of the mercury layer will the liquid still not flow out through this hole (surface tension T )? T / r g T /r g T / r g (D) 4T / r g 3. Q>쌹 šà¹ƒšèo ëa à> šàìy¹ t ºìƒìÅ r àîàì ¹ ëkàºàa ๠[á "àìá ú šàìy Î à[ A A t i à l üzw t à š z šà¹ƒ =àa ìº [á šì= šà¹ìƒ¹ [>K ³> Òì >à? (ë Jàì> T Òº šõë i à>) T / r g T /r g T / r g (D) 4T / r g 3. The correct relation between surface tension and surface energy is E S E S T ds dt E S T ds dt where E surface energy, S surface tension and T is the temperature 33. Two rods of identical dimension with Young s moduli y and y are joined end to end. The equivalent Young s modulus for the composite rod will be y y yy ( y y ) ( y y ) ( y y ) (D) y y 34. If a small part separates from an orbiting satellite, the part will fall to the earth directly move in a spiral and reach the earth after few rotations continue to move in the same orbit as the satellite (D) move farther away from the earth gradually 3. šõë i à> * šõë Å[v û ³ì Î[k A Î ša [i Òº E S E S T ds dt E S T ds dt ë Jàì> E šõë Å[v û, S šõë i à> & } T Òº t àš³àyà ú 33. y & } y ÒüÚ} P oàs [ [ÅÊ ƒå[i γ³ày๠ƒr ìa &ìa "šì¹¹ šøàì z åv û A ¹à Òº ú Î} åv û ƒìr ¹ tå º ÒüÚ} P oàs Òì y y ( y y ) ( y y ) yy ( y y ) (D) y y 34. Qèo >¹t ëa à> l üšnøò ë=ìa &A [i Ûå "}Å [áä Òìº l üòà ιàÎ[¹ šõ[= ãìt "àáìøl šøl ì ÑšàÒü¹àº šì= Qå¹ìt Qå¹ìt šõ[= ãìt &ìî ëš]áåì l üšnøìò¹ ³t Òü &A Òü A Û šì= Qå¹ìt =àa ì (D) ãì¹ ãì¹ šõ[= ã Òìt ƒèì¹ W ìº àì

34 / Two identical trains A and B move with equal speeds on parallel tracks along the equator. A moves from east to west and B from west to east. Which train will exert greater forces on the tracks? A B They will exert equal force 36. A uniform rod is kept vertically on a smooth surface at a point O. If it is rotated slightly and released, it falls down on the horizontal surface. The lower end will remain at O at a distance less than l / from O at a distance l / from O (D) at a distance larger than l / from O 37. A cubical block of mass M and edge a slides down a rough inclined plane of inclination with a uniform velocity. The torque of the normal force on the block about its centre has a magnitude zero Mga Mga sin (D) ( Mgasin )/ 35. [>¹Û ãú "e ìº ƒå[i γà z¹àº i ö àìa A * B ƒå[i ëi ö> γì ìk W [ºìt ìá ú A ëi ö>[i šè Òìt š[æw ì³ & } B ëi ö>[i š[æw ³ Òìt šèì W ºìá ú ëa à>ô ëi ö>[i i ö àìa ¹ l üšì¹ Î à[ A º šøìúàk A ¹ì? A B l ü ìú γ³àì>¹ º šøìúàk A ¹ì 36. &A [i ³Îõo t 캹 l üšì¹ O [ ƒåìt &A [i Îåȳ ƒr ìa l üà àì ƒòàøl A [¹ìÚ ¹àJà Òº ú [ƒ ƒr [i ìa Ñ š[¹³ào Qå[¹ìÚ ëáìøl ëƒ*úà ÒÚ t ì l üòà ">å è [³A t 캹 l üš¹ šìøl àú ú &ìû ìy ƒr [i ¹ [>³ šøà z O [ ƒåìt =àa ì O [ ƒå Òìt l / ƒè¹ìœ¹ A ³ ƒè¹ìœ =àa ì O [ ƒå Òìt l / ƒè¹ìœ =àa ì (D) O [ ƒå Òìt l / "ìšû à ë Åã ƒè¹ìœ =àa ì 37. a à¹[ [ÅÊ * M ì¹¹ &A [i Q>A àaõ [t ¹ ÃA ëa àìo "à>t ëa à> t º ¹à ¹ Îåȳ ë ìk >à[³ìt ìá ú ÃA [i ¹ ëa ì ƒø¹ ÎàìšìÛ º šø[t [yû Ú๠i A Òì Åè> Mga Mga sin (D) ( Mgasin )/ 38. A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of a smooth inclined and released. The least time will be taken in reaching the bottom by the solid sphere the hollow sphere the disc (D) All will take same time 38. &A Òü ¹ * &A Òü àîà [ [ÅÊ &A [i [>ì¹i ëkàºa, &A [i óò àšà ëkàºa * &A [i W àa [t ëa à> ³Îõo t 캹 l üšì¹ &A Òü [ ƒå Òìt ëáìøl ëƒ*úà Òº ëa à> Ññ[i Î ìw ìú A ³ γìÚ t º[i ¹ [>³ šøàì z ëš]áì? [>ì¹i ëkàºa óò àšà ëkàºa W àa [t (D) ÎA ìºòü &A Òü γìÚ ëš]áì

35 /9 35 [ P.T.O. 39. A ring of radius r and mass per unit length m rotates with an angular velocity in free space. The tension in the ring will be zero m r m r 39. r àîàì ¹ &A [i [¹} ëa ï[oa ë ìk Åèì> Qå[¹ìt ìá ú [¹}[i ¹ &A A íƒìq ¹ ¹ m Òìº [¹}-& šõë i à> Òì Åè> m r m r (D) mr 40. Two men support a uniform horizontal beam at its two ends. If one of them suddenly lets go, the force exerted by the beam on the other man will remain unaffected increase decrease (D) become unequal to the force exerted by him on the beam 4. The centre of a wheel rolling on a plane surface moves with a speed v 0. A particle on the rim of the wheel at the same level as the centre will be moving at speed zero v 0 v 0 (D) v 0 4. A particle is thrown with a speed u at an angle to the horizontal. When the particle makes an angle with the horizontal, its speed changes to v. Then v u cos v u cos cos v u cos sec (D) v u sec cos (D) mr 40. ƒåòü [v û &A [i Îåȳ ƒìr ¹ ƒåšøà z ì¹ "àìá ú [ƒ &A [v û Òk à; Îì¹ àú, t ì "š¹ [v û ¹ l üš¹ ƒr A tõ A šø åv û º "š[¹ [t t =àa ì õ[ ý šàì ÒùàÎ šàì (D) [v û A tõ A ƒìr šø åv û º Òìt [ Ä Òì 4. ëa à> γt 캹 l üš¹ [ƒìú v 0 ë ìk ëa à> W àa [t ¹ ëa ƒø "NøKà³ã "àìá ú W àa [t ¹ [¹ì³¹ l üšì¹ W àa [t ¹ ëa ì ƒø¹ &A Òü ëºì 캹 [ ƒåìt ë K Òì Åè> v 0 v 0 (D) v 0 4. ">å è [³ìA ¹ Îàì= ëa àìo u ë ìk ëa à> ÑñìA šø[û œ A ¹à Òº ú J> Ññ[i ">å è [³ìA ¹ Îàì= ëa ào Îõ[Ê A ¹º t J> l üò๠ë K š[¹ [t t ÒìÚ v Òº ú &ìû ìy v u cos v u cos cos v u cos sec (D) v u sec cos

36 / All the particles of a body are situated at a distance R from the origin. The distance of the centre of mass of the body from the origin is R R R (D) R 43. ëa à> Ññ¹ ÎA º A oàòü ëa ƒø Òìt R ƒè¹ìœ " [Ñ t "àìá ú Ññ[i ¹ ¹ìA ƒø Ññ[i ¹ ëa ƒø Òìt ë ƒè¹ìœ " Ñ à> A ¹ì t à Òº R R R (D) R 44. The horizontal range of a projectile fired at an angle of 5º is 50 m. If it is fired with the same speed at an angle of 45º, its horizontal range will be 5 m 37 m 50 m (D) 00 m 45. If a volume V is surrounded by a closed surface S, then r. n ds V V 3V (D) 4V 46. If then S F represents a conservative field, curl div grad F 0 F 0 F º ëa àìo šø[û œ ëa à> Ññ¹ ëû ìy ">å è [³A Îã³à 50 m. [ƒ l üòàìa 45º ëa àìo &A Òü ë ìk ëáàøl à Òt, t ì ">å è [³A Îã³à Òt 5 m 37 m 50 m (D) 00 m 45. [ƒ ëa à> "àút > V ëa à> ý t º S à¹à "à ý =àìa t ì r. n ds V V 3V (D) 4V S 46. [ƒ F à¹à ëa à> Î}¹Û ã ºìÛ y Îè[W t ÒÚ, t ì curl div grad F 0 F 0 F 0

37 /9 37 [ P.T.O. 47. If A, B and C are three vectors, then A B C A B C A B C A B C (D) A B C 48. Three particles of mass m each are placed at the three corners of an equilateral triangle of side a. The work should be done to increase the sides of the triangle to a is 3Gm a Gm a (D) 3Gm a 3Gm a 49. The Lagrangian of a particle moving under central force is given by K L m ( r r ) r L m ( r r ) K r K L m ( r r ) r (D) L m ( r r ) where the symbols have their usual meanings. 50. If q k is a cyclic coordinate in Lagrangian, then it will also a cyclic coordinate in Hamiltonian it will not a cyclic coordinate in Hamiltonian it may or may not be a cyclic coordinate in Hamiltonian K r 47. [ƒ A, B, C [t >[i ë C ¹ìA Îè[W t A ì¹, t ì A B C &¹ ³à> Òì A B C A B C A B C (D) A B C 48. a à [ [ÅÊ ëa à> γ à [y å ì\¹ [t >[i ÅãÈ [ ƒåìt m ì¹¹ [t >[i A oàìa ¹àJà Òº ú A oà [t >[i ìa a à ¹ γ à [y å ì\¹ ÅãÈ [ ƒå [t >[i ìt ¹àJìt ëkìº 3Gm a Gm a (D) 3Gm a 3Gm a 49. ëa ƒøãú 캹 " ãì> K[t Å㺠ëa à> A o๠º àkì¹gãú ³à> L m ( r r ) L m ( r r ) K r K r K L m ( r r ) r (D) L m ( r r ) K r ë Jàì> [W Òû P [º šøw [ºt "= Ò> A ì¹ ú 50. [ƒ q k à¹à ëa à> º àkì¹gãúàì>¹ ÎàÒü[Aà A Ñ à>às šøa à[åt ÒÚ, t ì ÒüÒà Ò à[³ºi >ãúàì>¹* ÎàÒü[Aà A Ñ à>às ÒüÒà Ò à[³ºi >ãúàì>¹ ÎàÒü[Aà A Ñ à>às >Ú ÒüÒà Ò à[³ºi >ãúàì>¹ ÎàÒü[Aà A Ñ à>às Òìt * šàì¹ >à* Òìt šàì¹

38 SPACE FOR ROUGH WORK / ¹àó A àì\¹ \> \àúkà /9 38

39 SPACE FOR ROUGH WORK / ¹àó A àì\¹ \> \àúkà /9 39 [ P.T.O.

40 /9 40 WW8 READ THE FOL LOW ING IN STRUC TIONS CARE FULLY : [>³ [º[Jt [>ìƒ Åà ºã àìºà A ì¹ šøl æ> :. Out of the four alternatives for each question, only one circle for the correct answer is to be darkened completely with Black Ballpoint Pen on the OMR Answer Sheet. The answer once marked is not liable to be changed. šø[t [i šøìå ¹ l üv ¹ [ÒÎàì ë W à¹[i [ A ëƒ*úà "àìá t à ë=ìa Ç å³ày Ç ý l üv ¹[i ¹ ëšø[û ìt OMR l üv ¹šìy ëƒ*úà õv [i A àìºà ºšìÚ i A º³ à¹à Î šèo ¹ê ìš A àìºà A ì¹ [W [Òû t A ¹ìt Òì ú &A ๠l üv ¹ [W [Òû t A ¹à ÒìÚ ëkìº t àìa "๠š[¹ t > A ¹à àì >à ú. The candidates should ensure that the Answer Sheet is not folded. Do not make any stray marks on the Answer Sheet. Do not write your Roll No. anywhere else except at the specified space on the OMR Answer Sheet. š¹ãû à= ã¹à ëa àì>à àì Òü OMR l üv ¹šy[i ò à\ A ¹ì > >à ú OMR l üv ¹šìy ëa àì>à¹a ³ ƒàk A ài à à ³ z ëºjà àì >à ú š¹ãû à= ã¹à tò à샹 ë¹àº >à ๠l üv ¹šìy [>[ƒ Ê A ¹à \àúkà áàøl à "> ëa àì>à \àúkàú [ºJì > >à ú 3. Handle the Question Booklet and Answer Sheet with utmost care, as under no circumstances (except technical defect), another set of Question Booklet and OMR Answer Sheet will be provided. OMR l üv ¹šy & } šøå šìy¹ Òàì¹ Îà[ A Ît A t à " º > A ¹ìt Òì ú ëa àì>à " Ñ àìt Òü (³å o yç [i * š ý [t Kt yç [i áàøl à) OMR l üv ¹šy * šøå šy šàìâi ëƒ*úà àì >à ú 4. The candidates will write the correct Question Booklet Number and OMR Answer Sheet Number in the Attendance Sheet. š¹ãû à= ãìa " àìi ì X Åãi -& tò ๠OMR l üv ¹šìy¹ >à ๠& } šøå šìy¹ >à ๠[> å º àì [ºJìt Òì ú 5. Candidates are not allowed to carry any textual material, printed or written, bits of papers, pager, mobile phone, electronic devices or any other material except the Admit Card and Photo Identity Card inside the Examination Hall/Room. š¹ãû à= ãìa " àl [³i A àl & } ó ìi à "àòüìl >[i [i A àl áàøl à "> ëa àì>à áàšàì>à à ëºjà A àk\, šk > * ³å o\àt Îà³Nøã, ëš\à¹, ë³à àòüº ëó à>, "> ëa àì>à¹a ³ ÒüìºC ö[>a [l àòüî [>ìú š¹ãû à Òìº/A ìû šøì Å A ¹ìt ëƒ*úà Òì >à ú 6. Each candidate must show on demand his/her Admit Card and Photo Identity Card to the Invigilator/Examination Officials. š¹ãû à Òìº Òü>[ [\ìºi ¹ A tõ A [A } à š¹ãû à ëa ì ƒø¹ [ t ì¹ š¹ãû à-î}[åãê "à[ A à[¹a A tõ A ƒà[ A ¹à Òìº šøìt A š¹ãû à= ã tò ๠" àl [³i A àl * ó ìi à "àòüìl >[i [i A àl ëƒjàìt à =àa ì > ú 7. No candidate, without special permission of the Centre Superintendent or Invigilator, should change his/her seat. ëî i ๠Îåšà[¹>ìi >ìl i à Òü>[ [\ìºi ¹-&¹ [ ìåè ">å³[t áàøl à š¹ãû à= ã š¹ãû à Òìº tò ๠Îà¹ Ñ à> š[¹ t > A ¹ìt šà¹ì > >à ú 8. Candidates will have to sign twice in the Attendance Sheet presented by the Invigilator on duty; first after taking their seats in the Examination Hall/Room and second at the time of handing over their OMR Answer Sheet to the Invigilator. š¹ãû à= ã[ƒkìa Òü>[ [\ìºi ì¹¹ ëƒ*úà " àìi ì X Åãi -& ƒåòü à¹ Ñ àû ¹ A ¹ìt Òì, šø=³ ๠š¹ãû à Òìº tò à샹 "àî> NøÒìo¹ š¹ & } [ t ãú ๠Òü>[ [\ìºi ì¹¹ [>A i OMR l üv ¹šy \³à ëƒ*ú๠γìÚ ú 9. The candidates should not leave the Examination Hall/Room without handing over their OMR Answer Sheet to the Invigilator on duty and without signing the Attendance Sheet twice. Cases where a candidate has not signed the Attendance Sheet a second time will be deemed not to have handed over the Answer Sheet and dealt with as an unfair means case. " àìi ì X Åãi -& ƒåòü à¹ Ñ àû ¹ A ¹à & } A t ¹t Òü>[ [\ìºi ¹-&¹ [>A i l üv ¹šy \³à ëƒ*úà t ãt ëa àì>à š¹ãû à= ã š¹ãû à Òº t àk A ¹ìt šà¹ì > >à ú [ƒ ëa àì>à š¹ãû à= ã " àìi ì X Åãi -& ƒåòü à¹ Ñ àû ¹ >à A ì¹> t ì [t [> tò ๠OMR l üv ¹šy \³à A ì¹>[> ìº Ko Òì & } t à ">å[w t A à [ÒÎàì ¹à Òì ú 0. Use of any type of calculating device is prohibited. ë ëa àì>à ¹ì>¹ A àºaå ìºi ì¹¹ Ò๠Πšèo ¹ê ìš [>[È ý ú. The candidates are governed by all the rules and regulations of the Board with regard to their conduct in the Examination Hall/Room. All cases of unfair means will be dealt with as per rules and regulations of the Board. š¹ãû à Òº/A ìû ¹ ³ì š¹ãû à= ã¹ "àw ¹o ë àìl ¹ [>Ú³ * [>ìƒ [ÅA à ">å àúã W à[ºt Òì ú Î ¹ì>¹ ">å[w t A à ë àìl ¹ [>Ú³ * [>ìƒ [ÅA à ">å àúã [>[ƒ Ê Òì ú. No part of the Question Booklet and OMR Answer Sheet shall be detached under any circumstances. ëa àì>à " Ñ àìt Òü šøå šy & } OMR l üv ¹šìy¹ ëa àì>à "}Å ëáòøl à à "àºàƒà A ¹à àì >à ú 3. On completion of the test, the candidate must hand over the OMR Answer Sheet to the Invigilator in the Hall/Room. The candidates are allowed to take away the Question Booklet with them. š¹ãû à ëåè Ò*Ú๠šì¹ š¹ãû à= ã " Å Òü tò ๠OMR l üv ¹šy A t ¹t Òü>[ [\ìºi ì¹¹ A àìá \³à ëƒì > ú š¹ãû à= ã¹à šøå šy[i tò à샹 Îàì= [>ìú ë ìt šàì¹> ú