Intermediate Examination 2021 (Annual) Physics PDF

INTERMEDIATE EXAMINATION 2021 (ANNUAL) 117 MODEL SET le; % 3 ?kaVs 15 feuV Physics ¼HkkSfrd 'kkL=½ iw.kkZad & 70 Time : 3 Hours 15 Minutes Full Marks - 70 dqy...

INTERMEDIATE EXAMINATION 2021 (ANNUAL) 117 MODEL SET le; % 3 ?kaVs 15 feuV Physics ¼HkkSfrd 'kkL=½ iw.kkZad & 70 Time : 3 Hours 15 Minutes Full Marks - 70 dqy iz'uksa dh la[;k 70 $ 20 $ 06 ¾ 96 Total No. of questions 70 + 20+ 06 = 96 Instructions for the candidates :- 1. Candidates are required to give answers in their own words as far as practicable. ijh{kkFkhZ ;FkklaHko vius 'kCnksa esa gh mÙkj nsaA 2. Figures in the right hand margin indicate full marks. nkfguh vksj gkf'k;s ij fn;s gq, vad iw.kkZad fufnZ"V djrk gSaA 3. 15 Minutes of extra time have been allotted for candidates to read the questions carefully. bl iz'u i= dks /;kuiwoZd i N2 B. N2 > N1 C. N1 = N2 D. N1 >> N2 In a step up transformer if number of turns in primary coil and sec ondary coil are N1 and N2 respecrively, then A. N1 > N2 B. N2 > N1 C. N1 = N2 D. N1 >> N2 61- gkbMªkstu o.kZØe dh dkSu lh Js.kh n`'; Hkkx esa iM+rh gS \ A. ckej Js.kh B. czSdsV Js.kh C. ykbeu Js.kh D. ik'pu Js.kh Which series of hydrogen spectrum lies in visible region ? A. Balmer series B. Brackett series C. Lyman series D. Paschen series 62- mÙky ysal dh Qksdl nwjh 1 ehVj gS] bldh 'kfDr gksxh & A. P = 100 D B. P = 10 D C. P = 1 D D. P = 0.5 D Focal length of convex lens is 1m, its power will be A. P = 100 D B. P = 10 D  C. P = 1 D D. P = 0.5 D 63- la;qDr lw{en'khZ ds fy, fuEufyf[kr esa dkSu lgh gS \ A. f0 > fe B. f0 < fe C. f0 = fe D. f0 >> fe Which of the following is correct for compound microscope ? A. f0 > fe B. f0 < fe C. f0 = fe D. f0 >> fe 64- irys fizTe }kjk U;wure fopyu dk dks.k gksrk gS & A. (1 - )A B. (1 - A) C. ( - 1)A D. (A - 1) Angle of minimum deviation by thin prism is : A. (1 - )A B. (1 - A) C. ( - 1)A D. (A - 1) 65- izdk'k ds viorZu esa fuEufyf[kr esa dkSu HkkSfrd jkf'k ugha cnyrk gS \ A. rhozrk B. osx C. rjaxnS/;Z D. vko`fÙk Which of the physical quantity does not change in refraction of light? A. intensity B. velocity C. wave-length D. frequency 66- ;fn gok esa izdk'k dk osx Va vkSj ikuh esa izdk'k dk osx Vw gks rc A. Va = Vw B. Va > Vw C. Vw > Va D. Va = 2Vw If velocity of light in air is Va and velocity of light in water is Vw then A. Va = Vw B. Va > Vw C. Vw > Va D. Va = 2Vw 67- ty ds fy, Økafrd dks.k gksrk gS  A. 24.410 B. 37.310 C. 41.140 D. 48.750 Critical angle for water is A. 24.410 B. 37.310 C. 41.140 D. 48.750 68- jpukRed O;frdj.k ds fy, dykarj gksrk gS A. = 2n B.  = (2n + 1) C. = n D.  = (n + 1) Phase difference for constructive interference is A. = 2n B.  = (2n + 1) C. = n D.  = (n + 1) 69- izdhf.kZr izdk'k dh rhozrk ¼I½ ds fy, fuEufyf[kr esa dkSu lgh gS \ 1 1 A. I  B. I     1 1 C. I  D. I    Which of the following is correct for intensisty of scattered light (I) ? 1 A. I  1 B. I    1 1 C. I  D. I     70- dk¡p ds lekarj lrg dh iV~Vh dk Qksdl nwjh gksrk gS & A. 'kwU; B. vuar C. 10 lseh D. 100 lseh  Focal-length of parallel sided glass slab is A. zero B. infinity C. 10 cm D. 100 cm SECTION-B (Short Answer Type Questions) [k.M&c ¼y?kq mÙkjh; iz'u½ Question Nos. 1 to 20 are Short Answer Type. Answer any 10 ques- tions. Each question carries 2 marks. 10 x 2 = 20 iz'u la[;k 1 ls 20 rd y?kq mÙkjh; iz'u gSaA fdUgha 10 iz'uksa dk mÙkj nsaA izR;sd ds fy, 2 vad fu/kkZfjr gS % 10 x 2 = 20 1- lefoHkoh ry ls vki D;k le>rs gSa \ 2 What do you mean by equipotentia surface ? 2- fLFkj&fo|qr ds xk¡l izes; dks fy[ksaA 2 Write Gauss-theorem of electrostatics. 3- /kkjk ds m"eh; izHkko ds twy ds fu;eksa dks fy[ksaA 2 Write Joule's laws of heating effect of current. 4- izR;korhZ /kkjk ds vkSlr eku dks le>k;saA 2 Explain average value of an alternating current. 5- izdk'k&fo|qr izHkko ls vki D;k le>rs gSa \ 2 What do you mean by photoelectric effect. ? 6- chVk ¼½ fdj.kksa ds nks xq.kksa dks fy[ksaA 2  Write two properties of beta () rays. 7- p - izdkj ds v/kZpkyd dks le>k;saA 2 Explain p - type of semiconductor. 8- pkyu&iV~Vh ls vki D;k le>rs gSa \ 2 What do you mean by conduction band ? 9- izdk'k ds /kzqohdj.k dks le>k;saA 2 Explain polarisation of light. 10- vk;ke eksMqyu dks le>k;saA 2 Explain amplitude modulation. 11- fo|qr~&vuqukn dks le>k;saA 2 Explain electrical resonance. 12- fo|qr&{ks= js[kkvksa ls vki D;k le>rs gSa \ 2 What do you mean by electric field lines ? 13- la?kkfj=ksa ds Js.kho) la;kstu dks le>k;saA 2 Explain series combination of capacitors. 14- AND xsV dks le>k;saA 2 Explain AND-gate. 15- ek/;e dh pqcd'khyrk dks le>k;saA 2 Explain Permeability of a medium. 16- izkFkfed banz/kuq"k dks le>k;saA 2  ExplainPrimary rainbow. 17- cksj&fl)kar dh nks dfe;ksa dks fy[ksaA 2 Write two short comings of Bohr-Principle. 18- ueu&dks.k ls vki D;k le>rs gSa \ 2 What do you mean by angle of dip ? 19- fudV n`f"V nks"k ls D;k le>rs gSa \ 2 What do you mean by Short sightedness ? 20- FAX ls vki D;k le>rs gSa \ 2 What do you mean by FAX ? Long Answer Type Questions@nh?kZ mÙkjh; iz'u Question Nos. 21 to 26 are Long Answer Type. Answer any 3 ques- tions. Each question carries 5 marks. 3 x 5 = 15 iz'u la[;k 21 ls 26 rd nh?kZ mÙkjh; iz'u gSaA fdUgha 3 iz'uksa dk mÙkj nsaA izR;sd iz'u ds fy, 5 vad fu/kkZfjr gS % 3 x 5 = 15 21- lekarj ifV~Vdk la?kkfj= dh /kkfjrk ds fy, O;atd izkIr djsaA 5 Find out the expression for capacitance of a parallel plate capacitor. 22- ,d py dqaMyh xSyosuksehV dh cukoV vkSj fØ;k dk o.kZu djsaA 5 Explain the construction and working of a moving coil galvanometer. 23- ekuo n`f"V&nks"k dks le>k;sa ,oa muds fuokj.k ds mik; crk;saA 5 Explain defects of vision of human eye and their remedies. 24- fopyu jfgr o.kZ&fo{ksi.k ds fy, vko';d 'krksZa dks Kkr djsaA 5 Find out the necessary conditions for dispersion without deviation. 25- izfrpqacdh; inkFkZ] vuqpqacdh; inkFkZ vkSj ykSg pqacdh; inkFkZ dks le>k;saA 5 Explain diamagnetic substance, paramagnetic substance and ferromagnetic substance. 26- OR&}kjd] AND&}kjd vkSj NOT&}kjd dks le>k;saA 5 Explain OR- gate, AND-gate and NOT-gate.