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7/28/2019 Lecturer Physics exam
1/30
Part-II/D/55 ( 3 ) P. T. O.
1. fdl oSKkfud us ijek.kq dk DokaVe ekMyfn;k
(1) jnjQksMZ (2) cksj
(3) U;wVu (4) QSjkMs
1. Who gave quantum model of atom
(1) Rutherford (2) Bohr
(3) Newton (4) Faraday
2. bl czk.M ds vkdkj ds ckjs esa dkSu-lkdFku lR; gS
(1) nl yk[k dkk o"kZ
(2) ,d yk[k dkk o"kZ
(3) lkS yk[k dkk o"kZ
(4) nl gtkj dkk o"kZ
2. Size of Universe is about
(1) ten million light years
(2) one million light years
(3) hundred million light years
(4) ten thousand light years
3. fdlh fo|qr vkosk ds fy, mlds ek=d dkvuqikre.m.u.rFkke.s.u.esa D;k gksxk
(1)10103 (2) 19104.8
(3)10
1(4)
30
1
3. The ratio of e.m.u. and e.s.u. of charge is
(1)10103 (2) 19104.8
(3)10
1(4)
30
1
4. fofk"V "ek dk foeh; lw= gS
(1) [ ]KTML 22
(2) [ ]122 KTML
(3) [ ]122 KTML
(4) [ ]122 KTL
4. Dimensions of specific heat are
(1) [ ]KTML 22
(2) [ ]122 KTML
(3) [ ]122 KTML
(4) [ ]122 KTL 5. fdlh ;ksx esa yEckbZ dks ek% 18.425 cm,
7.21 cmrFkk5.0 cmesa ekik x;k] rks bu rhuksayEckb;ksa ds ;ksx dks fy[k ldrs gSa
(1) 30.635 cm (2) 30.64 cm
(3) 30.63 cm (4) 30.6 cm
5. Three measurements are made as 18.425
cm, 7.21 cm and 5.0 cm. The addition
should be written as
(1) 30.635 cm (2) 30.64 cm
(3) 30.63 cm (4) 30.6 cm
6. fdlh oxkZdkj IysV dh HkqtkLij ,d cy Fyxrk gSA ;fn mlds ekiu esa frkr =qfV Lds fy, 2%rFkkFds fy, 4% gks] rks nkcds fy, laHkkfor frkr =qfV gS
(1) 2 % (2) 4 %
6. A force F is applied on a square plate of
Disc of side L. If percentage error in
determination of L is 2% and that in F is
4% what is permissible error in pressure
(1) 2 % (2) 4 %
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7/28/2019 Lecturer Physics exam
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Part-II/D/55 ( 5 ) P. T. O.
lst= 4 s rd ds fy, vkSlr osx gS
(1) 2 m/s (2) 16 m/s
(3) 4 m/s (4) 5 m/s
velocity in the interval from t= 0 to t= 4 s is
(1) 2 m/s (2) 16 m/s
(3) 4 m/s (4) 5 m/s
12. nks oLrqvksa dks /okZ/kj ij dh vksj QsadrsgSaA ;fn muds kjfEHkd osxksa dk vuqikr2 :3gS] rks muds }kjk r; dh xbZ vf/kdre
pkbZ dk vuqikr gksxk
(1) 2 : 3 (2) 4 : 9
(3) 1 : 1 (4) 2 : 3
12. Two bodies are thrown verticallyupwards with their initial speeds in the
ratio 2 : 3. Then the ratio of the maximum
heights attained by them is
(1) 2 : 3 (2) 4 : 9
(3) 1 : 1 (4) 2 : 3
13. ,d dkj ds osx10 m/sgS rks 25 mnwjh r;djus ds ckn dkj #d tkrh gS rks mldk
Roj.k gksxk(1) 2m/s2 (2) 2m/s4
(3) 2m/s2 (4) 2m/s61
13. The acceleration of a car that comes to
stop from a velocity of 10 m/s in distance
of 25 m is
(1) 2m/s2 (2) 2m/s4
(3) 2m/s2 (4) 2m/s61
14. ,d dkj igys vk/ks le; esa40fdeh/?kaVkdsosx ls rFkk nwljs vk/ks le; esa 60fdyks/?kaVkds osx ls pydj iwjh nwjh r;djrk gSA rks dkj dh vkSlr pky gS
(1) 40 fdeh/?kaVk (2) 48 fdehs/?kaVk
(3) 50 fdeh/?kaVk (4) 60 fdeh/?kaVk
14. A car covers the first half of the distance
between two places at 40 km/hr and the
other half at 60 km/hr. The average speed
of the car is
(1) 40 km/hr (2) 48 km/hr
(3) 50 km/hr (4) 60 km/hr
15. ;fn nks lfnk jkfk;ksa dk ifj.kke vkil esacjkcj gks rFkk mldk ifj.kkeh lfnk dk Hkhifjek.k mlds cjkcj gks rks nksuksa lfnkksa dschp dk dks.k gS
(1) 45 (2) 75
(3) 90 (4) 120
15. Two vectors have their resultant equal to
either of them. The angle between them
is
(1) 45 (2) 75
(3) 90 (4) 120
16. nks lfnk kj3i2a ++= rFkk
k4j2ib += ds chp dk dks.k gS
(1) 0 (2) 90
(3) 180 (4) dksbZ ugha
16. The angle between two vectors
kj3i2a ++= and k4j2ib +=
(1) 0 (2) 90
(3) 180 (4) None
17. ;fn BABA =+ rks lfnkA 17. The vectors A and B are such that
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Part-II/D/55 ( 6 )
rFkkB ds chp dk dks.k gS
(1) 45 (2) 60
(3) 75 (4) 90
BABA =+ then angle between
the two vectors will be
(1) 45 (2) 60
(3) 75 (4) 90
18. ,d uko iFoh ds lkis{k ji 43 + ds osx lsxfr djrk gS rFkk unh dk osx i`Foh dhlrg ij ji 43 gS rks uko dk osx unhds osx ds lkis{k gS
(1) i8 (2) ji 86
(3) ji 86 + (4) 25
18. A boat is moving with a velocity ji 43 + with respect to ground. The water in the
river is moving with a velocity ji 43 with respect to ground. The relative
velocity of the boat with respect to water is
(1) i8 (2) ji 86
(3) ji 86 + (4) 25
19. ,d cy k10j8i6F += fdlh fi.M ijyxdj1eh/ls2ds Roj.k mRiUu djrk gS rksfi.M dk O;eku gksxk
(1) 210 fdxzk (2) 102 fdxzk
(3) 10 fdxzk (4) 20 fdxzk
19. A force vector applied on a mass is
represented as k10j8i6F += andaccelerates with 1m/
2s . What will be the
mass of body
(1) 210 kg (2) 102 kg
(3) 10 kg (4) 20 kg
20. nks lfnkksa 5 rFkk 10 ek=d dk ifj.kkehlfnk dk ifjek.k laHko ugha gS
(1) 7 (2) 8
(3) 5 (4) 2
20. Which of the following cannot be resultant
of the vectors of magnitude 5 and 10
(1) 7 (2) 8
(3) 5 (4) 2
21. lfnk j)sinA(i)cosA(A += fdlh
nwljs lfnk B ij yEcor gS rks lfnkB gS
(1) j)sinB(i)cosB( +
(2) j)sinB(i)cosB( +
(3) j)cosB(i)SinB(
(4) j)sinA(i)cosA(
21. Let jAiAA )sin()cos( += be any
vector. Another vector B which isnormal to B is
(1) j)sinB(i)cosB( +
(2) j
)
sinB(i
)
cosB( +
(3) j)cosB(i)SinB(
(4) j)sinA(i)cosA(
22. ;fn RQP =+ rFkk lfnkP ] Q rFkkR dk ifjek.k ek% 5, 12rFkk13ek=d
dk gks rks lfnkQ rFkk R ds chp dk
22. If vector P , Q and R havemagnitudes 5, 12 and 13 unitsrespectively and RQP =+ , the angle
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Part-II/D/55 ( 7 ) P. T. O.
dks.k gksxk
(1)
12
5cos 1 (2)
13
5cos 1
(3)
13
12cos 1 (4)
13
7cos 1
between Q andR is
(1)
12
5cos 1 (2)
13
5cos 1
(3)
13
12cos 1 (4)
13
7cos 1
23. ;fn BABA +=+ rks lfnkA
rFkkB ds chp dk dks.k gS
(1) 90 (2) 120
(3) 0 (4) 60
23. If BABA +=+ , then anglebetween vector A andBwill be
(1) 90 (2) 120
(3) 0 (4) 60
24. ;fn fdlh fi.M ij yxk cy dk ifjek.krFkk fnkk esa dksbZ ifjorZu uk gks rks fi.Mds xfr dk iFk gksxk
(1)ljy js[kk (2)okkdkj
(3) nh?kZ okkdkj (4) buesa ls dksbZ ugha
24. The path of a particle moving under the
influence of a force fixed in magnitude
and direction is
(1) straight line (2) circle
(3) ellipse (4) none of them
25. ,d fdsV ds xsan dks /okZ/kj ij dh vksj19.6 m/sds osx ls Qsadk tkrk gS rks xsan
}kjk r; dh xbZ vf/kdre pkbZ gksxh
(1) 9.8 eh (2) 19.6 eh
(3) 29.4 eh (4) 39.2 eh
25. A cricket ball is thrown up with a speed
of 19.6 m/s. The maximum height it can
reach is
(1) 9.8 m (2) 19.6 m
(3) 29.4 m (4) 39.2 m
26. nks xsanksa dks {kSfrt ds lkFk30rFkk45ij{ksfir fd;k tkrk gS rFkk nksuksa xsan dsvf/kdre pkbZ ij osx leku gks rks muds{ksfir osx dk vuqikr gS
(1) 2:3 (2) 2 : 1
(3) 3:2 (4) 3 : 2
26. Two balls are projected making an angle
of 30 and 45 respectively with thehorizontal. If both have same velocity at
the highest points of their paths, then the
ratio of their velocities of projection is
(1) 2:3 (2) 2 : 1
(3) 3:2 (4) 3 : 2
27. fdlh fi.M dks 30ij {kSfrt ds lkFk{ksfir fd;k tkrk gS rks muds xfrt tkZesa ifjorZu kjafHkd fcUnqrFkk iqu% lrg ijvkus esa fdruk gksxk
(1) 'kwU; (2) 30%
(3) 60% (4) 100%
27. A projectile is fired at 30, neglecting airfriction, the change in kinetic energy
when it returns to the ground will be
(1) zero (2) 30%
(3) 60% (4) 100%
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Part-II/D/55 ( 8 )
28. fdlh oLrq dks {kSfrt ds lkFk dks.k ij{ksfir fd;k tkrk gS rFkk mudk vf/kdre/okZ/kj pkbZh gks rks mM~M;u dky gksxk
(1)
g
sinh2(2)
g
sinh22
(3) 2g
2h(4)
g
h2
28. A stone thrown at an angle to thehorizontal reaches a maximum height h.
The time of flight of the stone is
(1)
g
sinh2(2)
g
sinh22
(3) 2g
2h(4)
g
h2
29. ,d cUnwd dk O;eku5 kggSA mlds }kjk50 gmds xksyh dks400 m/sds osx ls 30
xksyh fr feuV dh nj ls NksM+k tkrk gS rkscUnwd dks viuh txg j[kus ds fy, fdrukcy cUnwd ij yxkuk gksxk
(1) 10 N (2) 5 N
(3) 15 N (4) 30 N
29. A machine gun has a mass 5 kg. It force
50 gm bullets at the rate of 30 bullets per
minute at a speed of 400 m/s. What force
is required to keep the gun in position
(1) 10 N (2) 5 N
(3) 15 N (4) 30 N
30. ,d oLrqdks fojkekoLFkk ls 1 m f=T;k okysmHkjs o`kh; iFk ij yq
7/28/2019 Lecturer Physics exam
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Part-II/D/55 ( 9 ) P. T. O.
(4) dqN dgk ugha tk ldrk (4) cannot be predicted
33. ,d oLrq ftldk O;eku 1 kggS ftlij6 Ndk cy yxkdj muesa 30 m/sdk osx
nku fd;k tkrk gSA rks fdrus le; rd
oLrq ij cy yxk gS
(1) 10lsd.M (2) 8lsd.M
(3) 7lsd.M (4) 5lsd.M
33. A force of 6 N acts on a body of mass
1 kg and during this time, the body
attains a velocity of 30 m/s. The time for
which the force acts on a body is
(1) 10 seconds (2) 8 seconds
(3) 7 seconds (4) 5 seconds
34. ;fn jkdsV dk osx lrg ds lkis{k 1v rFkkjkdsV }kjk fudyrs xSl dk osx lrg dslkis{k 2v gks rks xSl dk osx jkdsV dslkis{k fdruk gksxk
(1) 2v (2) 21 vv +
(3) 21 vv (4) 21 vv
34. The velocity of rocket with respect to
ground is 1v and velocity of gassesejecting from rocket with respect to
ground is 2v . Then velocity of gasses
with respect to rocket is given by
(1) 2v (2) 21 vv +
(3) 21 vv (4) 21 vv
35. nks fi.M fojkekoLFkk ls ,d nwljs dh vksjlkis{k cy ds dkj.k xfreku gSA oLrqA dkosxv rFkk oLrqB dk2v gks rks bl le;O;eku dsU dk osx fdruk gksxk
(1) 'kwU; (2) 1.5 v(3) 1 v (4) 3.0 v
35. Two particles initially at rest moves
towards each other under the mutual
attraction. At the instant when the speed
of A is v and the speed of B is 2v, the
speed of the centre of mass of the system is
(1) zero (2) 1.5 v
(3) 1 v (4) 3.0 v
36. ,d 12 kg dk ce nks Hkkxksa esa foLQksV dsdkj.k cV tkrk gSA igys8 kg ds Hkkx dkosx6 m/sgks rks nwljs Hkkx dh xfrt tkZfdruh gksxh
(1) 48 J (2) 32 J
(3) 24 J (4) 288 J
36. A bomb of 12 kg explodes into two
pieces of masses 4 kg and 8 kg. The
velocity of 8 kg mass is 6 m/s. The kinetic
energy of the other mass is
(1) 48 J (2) 32 J
(3) 24 J (4) 288 J
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Part-II/D/55 ( 10 )
37. nks oLrqftldk O;eku ek% 3 kg rFkk4kg ,d ?k"kZ.kjfgr iqyh ds lkFk yVdk fn;k
x;k gSA rks O;eku jfgr Mksjh }kjk yVdsO;ekuksa ds fy, ruko fdruk gksxk
(fyft, % g= 10m/2
s )(1)
7
120N (2)
7
240N
(3)7
480N (4)
7
360N
37. Two bodies of masses 3 kg and 4 kg are
tied to the ends of a massless string.
This string passes over a frictionless
pulley. The tension in the string is
(take g = 10m/2s )
(1)7
120N (2)
7
240N
(3)7
480N (4)
7
360N
38. ,d 10 kg O;eku okys fi.M dks ,d jQlrg ij j[kk x;k gSA bl fi.M ij100 Ndk cy {kSfrt fnkk esa yxkus ij mRiUuRoj.k gksxkA ( = 0.5, g = 10m/ 2s )
(1) 'kwU; (2) 10 m/ 2s
(3) 5 m/2s (4) 5.2 m/ 2s
38. A 100 N force acts horizontally on a
block of 10 kg placed on horizontal rough
table of coefficient of friction = 0.5(takes g = 10m/
2s ). The acceleration of
the block is
(1) zero (2) 10 m/2s
(3) 5 m/2s (4) 5.2 m/ 2s
39. ,d o`kkdkj iFk ij ,d dkj 10 m/s dhpky ls vklkuh ls xfr djus ds fy,o`kkdkj iFk dh f=T;k fdruh gksxh \ ;fn = 0.5 (fyft, % g= 10m/ 2s )
(1) 10
eh0(2) 4
eh0
(3) 5 eh0 (4) 20 eh0
39. A car turns a corner on a slippery road at
a constant speed of 10 m/s. If coefficient
of friction is 0.5, the minimum radius of
the arc in which car turns is
(take g = 10m/2s )
(1) 10 m (2) 4 m
(3) 5 m (4) 20 m
40. ,d fu;r cy ds dkj.k ,d oLrqfojkekoLFkk ls250 m dh nwjh 10 lsd.M esar; djrk gSA ;fn oLrq dk O;eku0.9 kggS rks ml cy dk eku gksxk
(1) 3 N (2) 3.5 N
(3) 4 N (4) 4.5 N
40. A constant force acts on a body of mass
0.9 kg at rest for 10 s. If the body moves
a distance of 250 m, the magnitude of the
force is
(1) 3 N (2) 3.5 N
(3) 4 N (4) 4.5 N
41. ,d Hkkjghu Mksjh }kjk nks fi.M dks fdlh?k"kZ.kjfgr iqyh ls yVdk nsus ij mudsRoj.k dk vuqikrg/8gks rks fi.M ds O;eku
1m rFkk 2m dk vuqikr gksxk
(1) 8 : 1 (2) 9 : 7
41. A light string passing over a smooth light
pulley connects two blocks of masses
1m and 2m vertically. If theacceleration of the systems is g/8, then
the ratio of masses is
(1) 8 : 1 (2) 9 : 7
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Part-II/D/55 ( 11 ) P. T. O.
(3) 4 : 3 (4) 5 : 3 (3) 4 : 3 (4) 5 : 3
42. fdlh iEi dh 'kfDr2 kw gks rks10 mdhpkbZ rd ikbi esa ty dks ,d feuV esaigqpkus esa fdrus ty yxsxk
(1) 2000 yhVj (2) 1000 yhVj
(3) 100 yhVj (4) 1200 yhVj
42. The power of a water pump is 2 kw. If
g=10 m/2s , the amount of water it can
raise in one minute to a height of 10 m is
(1) 2000 litres (2) 1000 litres
(3) 100 litres (4) 1200 litres
43. ,d fyV dh 'kfDr10 kw gSA fdrus le;esa fyV ,d 200 O;eku ds vknfe;ksa dks40 ehVj dh pkbZ ij ys tk ldk
(fyft, % g= 10m/ 2s )
(1) 4 s (2) 5 s
(3) 8 s (4) 10 s
43. A lift develops 10 kw of power. How
much time will it take to lift a man of 200
kg to a height of 40 m (take : g = 10m/2s )
(1) 4 s (2) 5 s
(3) 8 s (4) 10 s
44. ;fn xfrt tkZ esa 0.1% dh o`f) gks rkslaosx esa fdrus frkr dh o`f) gksxh
(1) 0.05 % (2) 0.1 %
(3) 1.0 % (4) 10 %
44. If K. E. of a body increases by 0.1 %, the
percentage increase in its momentum will be
(1) 0.05 % (2) 0.1 %
(3) 1.0 % (4) 10 %
45. ,d 2 kg O;eku okyk fi.M ,d o`kkdkjiFk ij xfr djrk gS ftldh f=T;k 1m gSA
;fn blds dksf.k; pky 2 rad/s, gks rksvfHkdsU cy fdruk gksxk(1) 4 N (2) 4 2 N
(3) 8 N (4) 8 2 N
45. A particle of mass 2 kg is moving along
a circle path of radius 1m. If its angular
speed is 2 rad/s, the centripetal forcewill be(1) 4 N (2) 4 2 N
(3) 8 N (4) 8 2 N
46. fdlh oLrqdk O;eku dsU dk osx fuHkZjdjrk gS
(1) dqy ckg~; cy ij
(2) dqy vkarfjd cy ij
(3) nksuksa(a)rFkk(b) ds ;ksx ij
(4) buesa ls dksbZ ugha
46. The motion of the centre of mass
depends on
(1) total external forces
(2) total internal forces
(3) sum of (a) and (b)
(4) none of these
47. ;fn fdlh fudk; ij yxus okyk dqy cyksadk ;ksx 'kwU; gks rks fuEu esa ls dkSuifjorZukhy gS
(1) fudk; dk laosx
47. If the net force acting on the system of
particles is zero, then which of the
following may vary
(1) momentum of the system
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Part-II/D/55 ( 12 )
(2) O;eku dsU dh fLFkfr
(3) O;eku dsU dk osx
(4) fudk; dh xfrt tkZ
(2) position of centre of mass
(3) velocity of centre of mass
(4) K. E. of the system
48. ;fn nks oLrq ftldk O;eku ek% 1 kgrFkk 2 kg gS rFkk bldk funsZkkad (1, 2)rFkk (1, 3) gks rks O;eku dsU dk D;kfunsZkkad gksxk
(1) ( )25,0
(2) ( )0,25
(3) ( )3831 ,
(4) buesa ls dksbZ ugha
48. Two bodies of mass 1 kg and 2 kg are
located at (1, 2) and (1, 3) respectively.The co-ordinates of the centre of mass
are
(1) ( )25,0
(2) ( )0,25
(3) ( )3831 ,
(4) none of these
49. fdlh oLrqdh tM+Ro vk?kw.kZ fuHkZj djrk gS
(1) vk;ru ij
(2) tkZ ij
(3) lrg ds {ks=Qy ij
(4) O;eku vkSj blds vkdkj ij
49. The moment of Inertia of a body depends
on its
(1) volume
(2) energy
(3) surface area
(4) mass and size
50. ,d xksyh; fi.M 1 kg dks ,d ?kw.kZu v{k dspkjksa vksj 3 lseh f=T;k ds Mksjh ls ?kqek;ktkrk gSA ;fn bldk dksf.k; osx 50 rad/sgks rks xfrt tkZ fdruh gksxh
(1) 450 J (2) 45 J
(3) 90 J (4) 0.45 J
50. A spherical solid ball of 1 kg mass andradius 3 cm is rotating about an axis
passing through its centre with an angular
velocity of 50 rad/s. K. E. of rotation is
(1) 450 J (2) 45 J
(3) 90 J (4) 0.45 J
51. ,d Bksl xksyh; O;eku okys fi.M dkmlds lrg ij yEcor v{k ds lkis{k tM+Rovk?kw.kZ fdruk gksxk
(1) 2MR32 (2) 2MR
52
(3) 2MR57 (4) 2MR
35
51. Moment of Inertia of a solid sphere about
an axis tangential to its surface is
(1) 2MR32 (2) 2MR
52
(3) 2MR57 (4) 2MR
35
52. ;fn R f=T;k okys ,d ifg;s dks dks.k ls?kqek fn;k tk; rFkk ifg;ks nwjh r; djrkgks rks
52. A wheel of radius R rotates through an
angle about the centre of the wheel.The distance s moved by the wheel is
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Part-II/D/55 ( 13 ) P. T. O.
(1)
RS = (2) S = R
(3) 22RS = (4) 2
RS =
(1)
RS = (2) S = R
(3) 22RS = (4) 2
RS =
53. ,d ifg;k ?kw.kZu xfr djrs gq, 2 feuV esaog fojkekoLFkk ls pydj240 rps dh pky
kIr dj ysrk gSA rks bldk Roj.k gksxk(1) 2rps5 (2) 2rps2
(3) 2rps8 (4) 2rps11
53. A wheel starts from rent and acquires a
rotational speed of 240 rps in 2 min. Its
acceleration is
(1) 2rps5 (2) 2rps2
(3) 2rps8 (4) 2rps11
54. ;fn ,d xksyk ?kw.kZu xfr djrk gS rks mldsLFkkukarfjr tkZ rFkk ?kw.kZu tkZ dk fdrukvuqikr gksxk
(1) 7 : 10 (2) 2 : 5
(3) 10 : 7 (4) 5 : 7
54. If a sphere is rolling, the ratio of the
translational energy to total kinetic energy
is given by
(1) 7 : 10 (2) 2 : 5
(3) 10 : 7 (4) 5 : 7
55. ;fn ?kw.kZu xfr djrs gq, fMLd ds ij/khjs-/khjs ckyq fxjkbZ tk, rks fMLd dkdksf.k; osx gksxk
(1) de
(2) vf/kd
(3) ,d leku fu;r
(4) dksbZ ugha
55. When sand is poured on a rotational
motion on a rotating disc, its angular
velocity will be
(1) decreases
(2) increases
(3) remain constant
(4) none of these
56. ,d vkneh ?kwers gq, Vscqy ij gkFk dkseksM+dj cSBk gSA ;fn ,dk,d vkneh viusnksuksa gkFk dks QSyk ys rks Vscqy dk dksf.k;pky gksxk
(1) vf/kd
(2) de
(3) ,d leku fu;r
(4) dqN dgk ugha tk ldrk
56. A man is sitting with folded hands on a
revolving table. Suddenly he stretches
his arms, angular speed of table would
(1) increase
(2) decrease
(3) remain the same
(4) nothing can be said
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Part-II/D/55 ( 14 )
57. ,d ,dleku NM+ ftldh yEckbZ Lgks rksmlds O;eku dsU ds ifjr% blds xkbjskudh f=T;k fdruh gksxh
(1)
12
L(2)
12
L2
(3)3
L(4)
2
L
57. The radius of gyration of a uniform rod of
length L about an axis passing through
its centre of mass is
(1)
12
L(2)
12
L2
(3)3
L(4)
2
L
58. ;fn i`Foh ,dk,d fldqM+ tk; vkSj bldhf=T;k ,d frgkbZ de gks tk; rks xq:Roh;Roj.k dk eku gksxk
(1)3
2g (2)
2
3g
(3)9
4g (4)
4
9g
58. If earth suddenly shrinks by one third of its
present radius, the acceleration due to
gravity will be
(1)3
2g (2)
2
3g
(3)9
4g (4)
4
9g
59. ,d vkneh dk Hkkj iFoh dh lrg ij600 NgS budk Hkkj pkn dh lrg ij fdruk gksxk
(1) 'kwU; (2) 100 N
(3) 600 N (4) 3600 N
59. The weight of a person on earth is 600 N.
His weight on moon will appear as
(1) zero (2) 100 N
(3) 600 N (4) 3600 N
60. ,d oLrq dk Hkkj i`Foh dh lrg ijW gSAbl oLrq dk Hkkj i`Foh ds vUnj dsU lsvk/kh f=T;k ij fdruk gksxk
(1)8
W (2)
4
W
(3)2
W (4) W
60. The weight of a body at earths surface isW. At a depth half way to the centre of
the earth it will be
(1)8
W (2)
4
W
(3)2
W (4) W
61. ,d oLrq dk Hkkj i`Foh dh lrg ij 700gwt gSA ml xzg ij fdruk Hkkj gksxk tcfd
xzg dk O;eku71xq.kk iFoh dk O;eku
rFkk xzg dh f=T;k21xq.kk iFoh dh f=T;k
ds cjkcj gS
(1) 50 gwt (2) 200 gwt
(3) 300 gwt (4) 400 gwt
61. A body weights 700 gwt on the surface ofthe earth. How much will it weight on thesurface of the planet whose mass is
71 and radius
21 of the earth
(1) 50 gwt (2) 200 gwt
(3) 300 gwt (4) 400 gwt
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Part-II/D/55 ( 15 ) P. T. O.
62. iFoh lrg ls ij i`Foh dh f=T;k dscjkcj pkbZ ij xq:Roh; Roj.k dk ekugksxk
(1) g (2) 2g
(3) 4g (4) 8
g
62. At a height equal to earths radius, above
the earth surface, the acceleration due to
gravity is
(1) g (2) 2g
(3) 4g (4) 8
g
63. xq:Roh; cy dk eku de gksxk
(1) Hkwe/; js[kk ij
(2) /kzqo ij
(3) Hkwe/; js[kk rFkk /kzqo ds chp
(4) buesa ls dksbZ ugha
63. Forceof gravity is least at
(1) the equator
(2) the pole
(3) a point is between equator and pole
(4) none of these
64. iFoh dh lrg ij xq:Roh; fLFkfrt tkZ gSM = iFoh dk O;eku] R = i`Foh dh
f=T;k
(1)R2
GM (2) gR
(3) + gR (4)R2
GM+
64. Gravitational potential on the surface of
the earth is (M = mass of the earth,
R = radius of the earth)
(1)R2
GM (2) gR
(3) + gR (4)R2
GM+
65. ,d gh d{kk esa nks mixzg iFoh ds pkjksa rjQpDdj yxk jgs gSA ;fn ,d mixzg dkO;eku nwljs mixzg dk100 xq.kk Hkkjh gksrks muds vkorZdky dk vuqikr gS
(1) 1 : 1 (2) 10 : 1
(3) 100 : 1 (4) 1 : 100
65. Two satellites are orbiting around the
earth in circular orbits of the same
radius. One of them is 100 times greater
in man than the other. Their period of
revolution are in the ratio
(1) 1 : 1 (2) 10 : 1
(3) 100 : 1 (4) 1 : 100
66. xq:Roh; O;eku rFkk tM+Ro O;eku dkvuqikr fdruk gksxk
(1)21 (2) 1
(3) 2 (4) dksbZ fufpr ugha
66. What is the ratio of gravitational mass
and inertial mass
(1)21 (2) 1
(3) 2 (4) not fixed
67. iFoh ds Hkwe/; js[kk ls /kzqo dh vksj tkus ijmldsg ds eku esa ifjorZu gksxk
67. As we go from equator to the pole the
value of g
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Part-II/D/55 ( 16 )
(1) ,d leku fu;r
(2) de
(3) vf/kd
(4) 45rd de gksxk
(1) remains the same
(2) decreases
(3) increases
(4) decreases upto a latitude of 45
68. fdlh mixzg ds vkorZdky T gks rks mudkxfrt tkZ lekuqikrh gksxk
(1)
32
1
T
(2)T
1
(3)2
1
T(4)
3
1
T
68. In a satellite of the time of revolution is T,
then K. E. is proportional to
(1)
32
1
T
(2)T
1
(3)2
1
T(4)
3
1
T
69. fdlh f=e mixzg dh v{kh; pky fuHkZjugha djrh gS
(1) i`Foh dk O;eku
(2) mixzg dk O;eku
(3) i`Foh dh f=T;k
(4) xq:Roh; Roj.kg
69. Orbital velocity of an artificial satellite
does not depends upon
(1) mass of earth
(2) mass of satellite
(3) radius of earth
(4) acceleration due to gravity
70. fdlh xzg ds fy, iyk;u osx ev gSA ;fnxzg dh f=T;k fu;r gks ijUrqO;eku pkjxq.kk gks tk, rks mlds iyk;u osx gksxk
(1) 4 (2) 2 ev
(3) ev (4)2
ve
70. Escape velocity on a planet is ev . If the
radius of planet remain same and mass
becomes 4 times, the escape velocity
becomes
(1) 4 (2) 2 ev
(3) ev (4)2
ve
71. fdlh oLrqdks mlds iyk;u osx ls de osxij {ksfir fd;k tk; rks mlds xfrt tkZrFkk fLFkfrt tkZ dk ;ksx geskk
(1) /kukRed gksxk
(2) 'kwU; gksxk
(3) _.kkRed gksxk
(4) buesa ls dksbZ ugha
71. In a missile launched with a velocity less
than escape velocity, the sum of its K. E.
and P. E. is always
(1) + ve
(2) zero
(3) ve
(4) none of them
72. rkieku ds o`f) dk ;ax R;kLFkrk xq.kkad ijD;k Hkko iM+sxk
(1) ?kVsxk
(2) c
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Part-II/D/55 ( 17 ) P. T. O.
(3) ,dk,d ifjorZu
(4) ,d leku fu;r
(3) changes erratically
(4) remains unchanged
73. fdlh oLrq esa vkdkj esa ifjorZu fd;k tk
ldrk gS(1) n`
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Part-II/D/55 ( 18 )
,d leku cqycqys esa foHkkftr fd;k tkrkgSA ;fn i`"B rukoT gS rks fd;k x;k dk;Zgksxk
(1) TR22 (2) TR23
(3) TR24 (4) TR22
divided into eight equal droplets. If surface
tension is T, then the work done in this
process will be
(1) TR22 (2) TR23
(3) TR24 (4) TR22
79. fdlh lkcqu ds cqycqys dk O;kl 4 cm gks rksmlesa mifLFkr fLFkfrt tkZ fdruh gksxhtcfd i`"B rukoT = 0.07 N/m gS
(1) J4107 (2) J4105.3
(3) J21076.1 (4) J3108.8
79. The energy stored in a soap bubble of
diameter 4 cm is (surface tension T = 0.07
N/m) nearly
(1) J4107 (2) J4105.3
(3) J21076.1 (4) J3108.8
80. fdlh O; dh ';kurk xq.kkad dk ekurkieku ds lekuqikrh gks
(1) T (2) T
1
(3) 2T (4)2T
1
80. How does the viscosity of gases varywith temperature
(1) T (2) T
1
(3) 2T (4)2T
1
81. fdlh fLax dk cy fu;rkad K gks rks mlsyEckbZ 1l ls yEckbZ 2l esa ifjofrZr djusij fdruk dk;Z djuk gksxk
(1) ( )21 llK (2)
+
2
llK 21
(3) ( )212
2llK (4) ( )21
2
2ll
2
K
81. K is the force constant of spring. The
work done in increasing its extention
from 1l to 2l will be
(1) ( )21 llK (2)
+
2
llK 21
(3) ( )21
2
2llK (4) ( )2
1
2
2ll
2
K
82. fdlh vknkZ xSl dk 27C rkieku ijmldh xfrt tkZ 1E gks rks 327Crkieku ij xfrt tkZ gksxh
(1)2
E1 (2)2
E1
(3) 1E2 (4) 1E2
82. At 27C temperature, the kinetic energyof an ideal gas is 1E . If the temperature
is increased to 327C, then kinetic energywould be
(1)2
E1 (2)2
E1
(3) 1E2 (4) 1E2
83. N. T. P.ij oxZ ek/; ewy osx ukbVkstu v.kqds fy, fdruk gksxk
(1) 33 m/s (2) 492 m/s
(3) 517 m/s (4) 546 m/s
83. R. M. S. velocity of nitrogen molecules at
N. T. P. is
(1) 33 m/s (2) 492 m/s
(3) 517 m/s (4) 546 m/s
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Part-II/D/55 ( 19 ) P. T. O.
84. ikblu vuqikr dk eku ifjorZukhy gS
(1) 1ls21 rd
(2) 43 ls 21 rd
(3) 21 ls 1 rd
(4) 1ls 2 rd
84. The value of Poissions ratio (theoretically)
lies between
(1) 1 to21
(2) 43 to 21
(3) 21 to1
(4) 1 to2
85. ,d Mksjh ls 2 kg dk Hkkj yVdkus ijmldh yEckbZ esa 1% dh o`f) gksrh gSA rksjs[kh; fofr gksxh
(1) 0.01 (2) 0.001
(3) 0.1 (4) 0.0001
85. The length of a wire increases by 1% on
suspending 2 kg wt from it. The linear
strain in the wire is
(1) 0.01 (2) 0.001
(3) 0.1 (4) 0.0001
86. 22 g ds 2CO dks27Crkieku esa16 g ds2O dks 37Crkieku esa fefJr fd;k tkrk
gS rks feJ.k dk rkieku gksxk
(1) 30.5C (2) 32C
(3) 27C (4) 37C
86. The 22 g of 2CO at 27C is mixed with 16g of 2O at 37C. The temperature of themixture is
(1) 30.5C (2) 32C
(3) 27C (4) 37C
87. ,d crZu esa iwjh rjg ls 4Cij ikuh Hkjfn;k x;k gSA ;g ikuh ij ls fxjus yxsxk;fn
(1) tc bldks xeZ fd;k tkrk gS
(2) tc bldks B.Mk fd;k tkrk gS
(3) nksuksa B.Mk rFkk xeZ djus ij
(4) uk rks B.Mk djus ij vkSj uk gh xeZ djusij
87. A beaker is completely filled with water at
4C, it will overflow
(1) when heated, but not when cooled
(2) when cooled, but not when heated
(3) both when heated or cooled
(4) neither when heated nor when cooled
88. ,d cksry esa0Cij ty Hkj dj mls pkndh lrg ij [kksy fn;k tk, rks
(1) ty te tk;sxk
(2) ty mcyus yxsxk
(3) ty 2H vkSj 2O esa cV tk;sxk
88. A bottle of water at 0C is opened on thesurface of moon. What happens
(1) water freezes
(2) water will boil
(3) water decomposes in 2H and 2O
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Part-II/D/55 ( 20 )
(4) dqN Hkh ugha gksxk (4) none of these happens
89. nl eksy dk vknkZ xSl dks600 k rkiekuij100 fyVj ls10 fyVj rd nck;k tkrkgSA bl nkSjku fdruk dk;Z laHko gS
(1) J1011.4 4 (2) J1011.4 4
(3) J104.11 4 (4) J104.11 4
89. Ten moles of an ideal gas at constant
temperature 600 k is compressed from
100 litres to 10 litres. The work done in
the process is(1) J1011.4 4 (2) J1011.4 4
(3) J104.11 4 (4) J104.11 4
90. fdlh fudk; dks50 twy "ek nsus ij rFkkfudk; ij 15 J dk dk;Z djus ij fudk;dh vkarfjd tkZ esa ifjorZu gksxk
(1) 35 J (2) 50 J
(3) 65 J (4) 15 J
90. If amount of heat given to a system be 50 J
and work done on the system be 15 J, then
change in internal energy of the system is
(1) 35 J (2) 50 J
(3) 65 J (4) 15 J
91. ,d vknkZ ,d ijek.kqfod xSl dksA B C D Ard ys tkus esa fdruk dk;Zgksxk
(1) PV
(2) 0.5 PV
(3) 2 PV
(4) 3 PV
91. An ideal monoatomic gas is taken around
the cycle ABCDA as shown in P versus V
curve. Work done during the cycle is
(1) PV
(2) 0.5 PV
(3) 2 PV
(4) 3 PV
92. jsftjsVj dk;Z djrk gS
(1) "eh; batu dh rjg
(2) "eh; iEi dh rjg
(3) 'khryu dh rjg
(4) fo|qr batu dh rjg
92. A refrigerator acts as
(1) a heat engine
(2) a heat pump
(3) an air cooler
(4) an electric motor
93. dkuksZV batu tc "ek dks ksr ls
vokksf"kr djrk gS rks ksr dk rkieku gS(1) vf/kd
(2) de
(3) ,d leku fu;r
(4) dqN ugha dgk tk ldrk
93. In a Carnot engine, when heat is
absorbed from the source, temp of source
(1) increases
(2) decreases
(3) remain constant
(4) cannot say
v
p
O x
yD
(V, 2P) C(2V, 2P)
B(2V, P)(P, V)
A
v
p
O x
yD
(V, 2P) C(2V, 2P)
B(2V, P)(P, V)
A
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Part-II/D/55 ( 21 ) P. T. O.
94. fdlh batu dh n{krk31 gS rks bl batu
}kjk vUos"k.k "ek dk eku fdyks dSyksjh esagksxk
(1) 1400 cal (2) 700 cal
(3) 700 J (4) 1400 J
94. An engine has an efficiency of31 . The
amount of work this engine can performper kilocalorie of heat input is(1) 1400 cal (2) 700 cal
(3) 700 J (4) 1400 J
95. :nks"e f;k ds nkSjku 10 eksy xSl dhvkarfjd tkZ 50 twy rd de gksrh gSA blnkSjku fdruk dk;Z laHko gS
(1) + 50 J
(2) 50 J
(3) zero
(4) cannot say
95. During adiabater expansion of 10 moles
of a gas, the internal energy decreases
by 50 J. Work done during the process is
(1) + 50 J
(2) 50 J
(3) 'kwU;
(4) dqN dgk ugha tk ldrk
96. fdlh vknkZ ';ke oLrqdk rkieku5% rdc
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Part-II/D/55 ( 22 )
(2) y
(3) fdlh dk ugha
(4) dqN ugha dg ldrs
(2) y
(3) no one
(4) cannot say
100. fdlh vknkZ xSl ds lerkih vk;rukRed
R;kLFkrk xq.kkad fdruk gksxk
(1)32 P (2) P
(3)23 P (4) 2 P
100. A given mass of an ideal gas is at pressure
P and absolute temperature T. Theisothermal bulk modular of the gas is
(1)32 P (2) P
(3)23 P (4) 2 P
101. fdlh vknkZ xSl ds ,d eksy dh xfrt
tkZ RT2
3E = gS rks pC dk eku gksxk
(1) 0.5 R (2) 0.1 R
(3) 1.5 R (4) 2.5 R
101. The kinetic energy of one mole of an
ideal gas is RT2
3E = . Then pC will be
(1) 0.5 R (2) 0.1 R
(3) 1.5 R (4) 2.5 R
102. fdlh ,d ijek.kqfod xSl dks :nks"e e}kjk ,dk,d mldk vk;ru
81 rd de dj
fn;k tkrk gSA rks vafre nkc rFkk kjafHkdnkc dk vuqikr fdruk gksxk( )
35=r
(1) 32 (2)3
40
(3)5
24 (4) 8
102. A monoatomic gas is suddenly
compressed to81 th of its initial volume
adiabatically. The ratio of its final
pressure to initial pressure is ( )3
5=r
(1) 32 (2)3
40
(3)5
24 (4) 8
103. fdlh ';ke oLrq }kjk 2000 k rkieku ijvf/kdre m dk rjaxnS/;Z mRiUu fd;ktkrk gSA rks 3000 k rkieku ij fdrusrjaxnS/;Z dh "ek mRiUu gksxh
(1) m2
3 (2) m
3
2
(3) m81
16 (4) m
16
81
103. A black body has maximum wavelength
m at 2000 k. Its corresponding wave-length at 3000 k will be
(1) m2
3 (2) m
3
2
(3) m81
16 (4) m
16
81
104. fdlh fn;s x;s e esa vknkZ xSl ds fy,dW = 0 rFkkdQ < 0A rc bl xSl dk(1) rkieku de gksxk
(2) vk;ru vf/kd gksxk
(3) fudk; esa dksbZ ifjorZu ugha gksxk
(4) rkieku c
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Part-II/D/55 ( 23 ) P. T. O.
rk{kf.kd Roj.k ds chp fdruk dykUrj gksxk
(1) 'kwU; (2)2
(3) (4) 0.707
instantaneous velocity and acceleration
of a particle executing S.H.M. is
(1) zero (2)2
(3) (4) 0.707
106. fdlh ljy vkorZ xfr esa ;fn Roj.k dk ekuc
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Part-II/D/55 ( 24 )
(3)3
K (4) 9 K (3) 3K (4) 9 K
111. fdlh ljy vkorZ xfr ds fy, vk;ke a,dqy tkZ E gks rks ewy fcUnq ls fdrusfoLFkkiu ij bldh xfrt tkZ
4
E3 gkstk;sxh
(1)2
ay =
(2)2
ay =
(3)
23
ay =
(4) y = a
111. A particle starts S.H.M. from the mean
position. Its amplitude is a and total
energy E. At one instant its kinetic
energy is
4
E3 its displacement at thisinstant is
(1)2
ay =
(2)2
ay =
(3)
23
ay =
(4) y = a
112. fdlh ljy yksyd dh yEckbZ45% rd c
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Part-II/D/55 ( 25 ) P. T. O.
gks rks mlds vkorZdky dk eku gksxk
(1) 2.0 sec (2) 3.14 sec
(3) 0.5 sec (4) 1.0 sec
3 cm from the mean position. Its time
period is
(1) 2.0 sec (2) 3.14 sec
(3) 0.5 sec (4) 1.0 sec
116. lkE;koLFkk ls xnwjh ij fdlh ljy vkorZxfr ds fy, fLFkfrt tkZ dk eku gksxk
(1)22
2
1xmw
(2)22
2
1amw
(3) ( )2222
1xamw
(4)
'kwU;
116. The P.E. of a particle executing S.H.M.
from a distance x from its equilibrium
position is
(1)22
2
1xmw
(2)22
2
1amw
(3) ( )2222
1xamw
(4) zero
117. fdlh jsfM;ks LVsku ls 760 KHz ij rjaxlkfjr fd;k tkrk gS rks rjax dk rjaxnS/;Zfdruk gksxk
(1) 395 m (2) 790 m
(3) 760 m (4) 197.5 m
117. A radio station broadcasts at 760 KHz.
What is wavelength of the station
(1) 395 m (2) 790 m
(3) 760 m (4) 197.5 m
118. 0Cij /ofu dk osx gok esa331 m/sgS rks35Cij /ofu dk osx fdruk gksxk(1) 331 m/s (2) 366 m/s
(3) 351.6 m/s (4) 332 m/s
118. If speed of sound is in air at 0C is331 m/s what will be its volume at 35C(1) 331 m/s (2) 366 m/s
(3) 351.6 m/s (4) 332 m/s
119. fdlh vuqukn uyh esa Fke rFkk f}rh;vuqukn 22.7 cmrFkk70.2 cmij kIr gksrkgS rks r`rh; vuqukn fdrus ij kIr gksxk
(1) 117.7 cm (2) 92.9 cm
(3) 115.5 cm (4) 113.5 cm
119. In a resonance column first and second
resonance are obtained at depths 22.7 cm
and 70.2 cm. This third resonance will be
obtained at a depth of
(1) 117.7 cm (2) 92.9 cm
(3) 115.5 cm (4) 113.5 cm
120. nks vkWxsZu ikbi 10Cij 2 foLiUn frlsd.M mRiUu djrs gSA ;fn rkieku dks20C rd c
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Part-II/D/55 ( 26 )
(4) ikbi ds yEckbZ ij fuHkZj djrk gS (4) depends on length of pipes
121. fdlh cUn vkWxsZu ikbi ds fy, ewyHkwrvko`fk 100 Hz gSA rks nksuksa rjQ ds fljs[kqys jgus ij fdruh vko`fk kIr gksxh
(1) 200, 400, 600, 800,..........
(2) 200, 300, 400, 500,..........
(3) 100, 300, 500, 700,..........
(4) 100, 200, 300, 400,..........
121. A closed organ pipe has fundamental
frequency 100 Hz. What frequencies will be
produced if its other end is also opened
(1) 200, 400, 600, 800,..........
(2) 200, 300, 400, 500,..........
(3) 100, 300, 500, 700,..........
(4) 100, 200, 300, 400,..........
122. MkIyj dk Hkko Hkkoh gksrk gS
(1) dsoy /ofu rjax ij
(2) dsoy dkk rjax ij
(3) nksuksa /ofu rFkk dkk rjax ij(4) uk rks /ofu vkSj u gh dkk rjax ij
122. Dopplers effect applies
(1) only to sound waves
(2) only to light waves
(3) to both sound and light waves
(4) to neither light nor sound waves
123. tc dksbZ ksr /ofu osx ls T;knk osx ls xfrdjrk gS rks ksr rjax iSnk djrk gS
(1) xksyh; rjax (2) lery rjax
(3) csyuuqek rjax (4) dksfudy rjax
123. When a source moves with a speed
greater than the velocity of sound in the
medium, then the wave front of the wave is
(1) spherical (2) plane
(3) cylindrical (4) conical
124. fdlh vxkeh rjax dk lehdj.k
y = 4 sin3
2 x. cos 40 t
gS rks nks LiUn ds chp dh nwjh fdruh gksxhtcfd x rFkky lseh esa] t lsd.M esa gS
(1) 3 cm (2) 1.5 cm
(3) 6 cm (4) 4 cm
124. The equation of stationary wave along a
stretched string is given by
y = 4 sin3
2 x. cos 40 t
where x and y are in cms and, t in secs.
The separation between two adjacent
modes is
(1) 3 cm (2) 1.5 cm
(3) 6 cm (4) 4 cm
125. fdlh oLrq dks sj.k dh f;k }kjk vkosfkrfd;k tkrk gS rks oLrq
(1) mnklhu gks tk;sxk
(2) dksbZ vkosk dks de ugha djsxk
(3) iwjs vkosk dks [kks nsxk
(4) ftruk vkosfkr Hkkx gksxk mls [kks nsxk
125. When a body is charged by induction,then the body
(1) becomes neutral
(2) does not lose any charge
(3) loses whole of the charge on it
(4) loses part of the charge on it
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Part-II/D/55 ( 27 ) P. T. O.
126. nks vkosk ds chp yxus okyk cy F gSA ;fnnksuksa vkosk dks nksxquk rFkk nwjh Hkh nksxquhdj nh tk;s rks yxus okyk cy gksxk(1) F (2) 2 F
(3) 4 F (4)4
F
126. Force between two charges separated by
a certain distance in air is F. If each
charge were doubled and distance
between them also doubled, force would be
(1) F (2) 2 F
(3) 4 F (4)4
F
127. nks leku vkoskQ ds feykus okyh js[kk ijBhd chp esa rhljk vkoskq j[k fn;k tkrkgS rks fudk; dks lkE;koLFkk esa gksus ds fy,q dk eku gksxk
(1) 2Q
(2)4
Q
(3) 4 q
(4)2
Q+
127. If charge q is placed at the centre of the
line joining two equal charge Q. The
system of three charges will be in
equilibrium if q is
(1)2
Q
(2)4
Q
(3) 4 q
(4)2
Q+
128. nks leku1cds vkosk dks 1 m dh nwjh ijgok esa j[kus ij mldh oS|qr fLFkfrt tkZgksxh
(1) J3109 (2) 'kwU;
(3) ev3109 (4) 1 J
128. Potential energy of equal positive charge
1c held 1 m apart in air is
(1) J3109 (2) zero
(3) ev3109 (4) 1 J
129. nks xksyh; oLrqdks vkosfkr djds mls ,d/kkfRod rkj }kjk tksM+ fn;k tkrk gS rksoS|qr {ks= dh rhozrk dk vuqikr xksyh; oLrqds fy, fdruk gksxk \ tgk 1R rFkk 2R nksuksa xksyh; oLrqdh f=T;k gS
(1)
2
1
2
R
R
(2)2
2
1
R
R
(3)
1
2
R
R
129. Two spheres of Radii 1R and 2R respectively are charged and joined by a
wire. The ratio of electric field of sphere
is
(1)
2
1
2
R
R
(2)2
2
1
R
R
(3)
1
2
R
R
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Part-II/D/55 ( 28 )
(4)
2
1
R
R (4)
2
1
R
R
130. fdlh oS|qr foHko dks lehdj.k
4105
2
+= xxV oksYV }kjk nfkZrfd;k tkrk gSA rksx = 1 m ij oS|qr {ks= dhrhozrk gksxh
(1)m
V23 (2)
m
V11
(3)m
V6 (4)
m
V20
130. The electric potential V is given as a
function of distance x (meter) by4105 2 += xxV volt. Value of electricfield at x = 1 m is
(1)m
V23 (2)
m
V11
(3)m
V6 (4)
m
V20
131. fdlh vkoskQ dks ,d ?ku ds dsU ij j[kfn;k x;k gks rks ?ku ds R;sd ry }kjk
oS|qr yDl fdruk gksxk
(1)0Q
(2)02
Q
(3)06
Q(4)
012Q
131. A charge is placed at the centre of a
cube, the flux emitted through its one
face is
(1)0Q
(2)02
Q
(3)06
Q(4)
012Q
132. fn, x, fp= esa fcUnq A rFkk B ds chpifj.kkeh /kkfjrk fdruh gksxh
(1) 15 f (2) 30 f
(3) 60 f (4) 45 f
132. The resultant capacitance between the
points A and B in fig.
(1) 15 f (2) 30 f
(3) 60 f (4) 45 f
133. fdlh 10ds frjks/k okys rkj esa 5Adh/kkjk4feuV rd okfgr dh tkrh gSA rksfr lsd.M rFkk fr vuqLFk {ks=Qy ls
fdruk vkosk okfgr gksxk(1) 12 C (2) 120 C
(3) 1200 C (4) 12000 C
133. A current of 5A exists in a 10 resistancefor 4 minutes. How many coulombs pass
through any cross section of the resistor
in this time
(1) 12 C (2) 120 C
(3) 1200 C (4) 12000 C
134. fdlh rkj dk kjafHkd frjks/kRgks rks rkjdh fu;r vk;ru ij mldh yEckbZ nksxquhdj nsus ij mldk frjks/k fdruk gksxk
134. The resistance of a wire is R. The wire isstretched to double its length keeping
volume constant. Now the resistance of the
BED
A
5 f 10 f
15 f 30 f
F
GBE
DA
5 f 10 f
15 f 30 fF
G
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Part-II/D/55 ( 29 ) P. T. O.
(1) 4 R (2) 2 R
(3)2
R (4)
4
R
wire will become
(1) 4 R (2) 2 R
(3)2
R (4)
4
R
135. fdlh IysfVue rkj dk frjks/k ek% 0CrFkk273Cij10rFkk20gS rks frjks/krki xq.kkad fdruk gksxk
(1)1
273
1
K (2) 273 k
(3) 1K293
1
(4) 273C
135. The resistance of platinum wire has 10at 0C and 20 at 273C. The value oftemperature coefficient of platinum is
(1)1
273
1
K (2) 273 k
(3) 1K293
1
(4) 273C
136. fp= esa fn[kk;s x;s /kkjkI dk eku gksxk
(1) 1.7 A (2) 3.7 A
(3) 1.3 A (4) 1.0 A
136. The figure shows current in a part of an
electric circuit, then current I is
(1) 1.7 A (2) 3.7 A
(3) 1.3 A (4) 1.0 A
137. fdlh rkj dk dqy frjks/k12gS ;fn mlso`kkdkj dj fn;k tk, rks mlds O;kl dsnksuksa fcUnqvksa ds chp dk ifj.kkeh frjks/kgksxk
(1) 6 (2) 3
(3) 12 (4) 24
137. A wire has a resistance 12. It is bent inthe form of a circle. The effectiveresistance between two points on any
diameter is
(1) 6 (2) 3
(3) 12 (4) 24
138. nks fo|qr ds cYc ds frjks/kksa ds vuqikr1 : 3gSa ;fn mUgsa lekUrj e esa fdlh fu;r
oksYVst okys ksr ls tksM+ fn;k tk; rks
mudh 'kfDr dk vuqikr fdruk gksxk(1) 1 : 3 (2) 1 : 1
(3) 3 : 1 (4) 1 : 9
138. Two electric bulbs whose resistances are
in the ratio 1 : 3 are connected in parallel
to a constant voltage source. The powers
dissipated in them have the ratio(1) 1 : 3 (2) 1 : 1
(3) 3 : 1 (4) 1 : 9
139. fdlh ukfHkd ds pkjksa vksj m121050 ds f=T;k ds o`kh; iFk ij bysDVkWu
sm/102.2 6 ds osx ls xfr djrk gSA rksbysDVkWu dk pqEcdh; vk?kw.kZ gksxk
139. The orbital speed of electron orbiting
around a nucleus in a circular orbit of
radius m121050 in sm/102.2 6 .Then the magnetic dipole moment of an
I
1.3A2A
2A 1A
I
1.3A2A
2A 1A
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Part-II/D/55 ( 30 )
(1)219106.1 Am
(2)221103.5 Am
(3)224108.8 Am
(4)226108.8 Am
electron is
(1)219106.1 Am
(2)221103.5 Am
(3)224108.8 Am
(4)226108.8 Am
140. lkbDyksVkWu mRiUu gksrk gS
(1) xSl ds fuEu nkc ij
(2) oS|qr {ks= ds fuEu vkofk ij
(3) oS|qr {ks= ds mPpre vko`fk ij
(4) xSl ds mPp nkc ij
140. Cyclotron employs
(1) gas at low pressure
(2) low frequency electric field
(3) high frequency electric field
(4) gas at high pressure
141. fdlh fo|qr pqEcdh; cy js[kk B dsyEcor ,d pqEcdh; f}/kzqo dks j[k fn;kx;k gSA ;fn bls180ls ?kqek fn;k tk;s rksfdruk dk;Z djuk iM+sxk
(1) MB (2) 2 MB
(3) 2MB (4) 'kwU;
141. A magnetic dipole is placed at right
angles to the direction of lines of force of
magnetic induction B. If it is rotated through
an angle of 180 then the work done is(1) MB (2) 2 MB
(3) 2MB (4) zero
142. ;fn fdlh pqEcd ds mkjh rFkk nf{k.kh /kzqo dsikl ykSgpqEcdh; inkFkZ dks yk;k tkrk gS rks
(1) /kzqo }kjk vkdf"kZr gksrk gS
(2) /kzqo }kjk frdf"kZr gksrk gS
(3) mkjh /kzqo }kjk frdf"kZr rFkk nf{k.kh /kzqo}kjk vkdf"kZr gksrk gS
(4) mkjh /kzqo }kjk vkdf"kZr rFkk nf{k.kh /kzqo}kjk frdf"kZr gksrk gS
142. If a diamagnetic substance is brought near
north or south pole of a bar magnet it is
(1) attracted by poles
(2) repelled by poles
(3) repelled by north pole and attracted by
south pole
(4) attracted by north pole and repelled by
south pole
143. fdlh dq.Myh esa 5Vdk fo0 ok0 cy dks3Als 2A /kkjk esa ifjorZu djds ,d fefylsd.M esa iSnk fd;k tkrk gS rks Lo%sj.kxq.kkad gksxk
(1) H2105 (2) 5 H
143. An e.m.f. of 5V is produced in a coil when
current changes at a steady rate from 3A
to 2A in one millisecond. The value of
self-inductance is
(1) H2105 (2) 5 H
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Part-II/D/55 ( 31 ) P. T. O.
(3) H3105 (4) 0.005 mH (3) H3105 (4) 0.005 mH
144. fdlh R;korhZ ifjiFk esa /kkjk
=
2100sin5
ti ,fEi;j rFkk foHko
( )tv 100sin200= oksYV gks] rks 'kfDr dkeku gksxk
(1) 20okWV (2) 40okWV
(3) 1000okWV (4) 'kwU;okWV
144. In an A.C. circuit, the current in
=
2100sin5
ti amp and the A.C.
potential ( )tv 100sin200= volt, then thepower consumption is
(1) 20 Watt (2) 40 Watt
(3) 1000 Watt (4) Zero Watt
145. rhu rjaxnS/;Z ek% m710 ] m1010 rFkkm710 ds gSa rks muds uke D;k gks ldrs gSa
(1) jsfM;ks rjax] x-rjax] R;{k rjax
(2) x-rjax] R;{k rjax] jsfM;ks rjax
(3) x-rjax] -rjax] R;{k rjax
(4) R;{k rjax] -rjax] x-rjax
145. There are three wavelengths m710 ]m1010 and m710 . Find their
respective names
(1) radio waves,x- rays, visible rays
(2) x- rays,visible rays,radio waves,
(3) x- rays,- rays,visible rays
(4) visible rays,- rays, x- rays
146. ;fn fdlh dkk rjax dks ijkorZu }kjk/kzqfor fd;k tkrk gS rks ijkofrZr rFkkviofrZr fdj.k ds chp dks.k gksxk
(1) 180 (2) 90
(3) 45 (4) 36
146. If the light is polarised by reflection, then
the angle between reflected & refracted
light is
(1) 180 (2) 90
(3) 45 (4) 36
147. fdlh fTe ftldk viorZukad 1.5 gS rksmlds U;wure fopyu dks.k dk eku mldsfTe dks.k ds cjkcj gSA rks fTe dks.kfdruk gksxk (fn;k gS % cos 41 = 0.75)(1) 62 (2) 41
(3) 82 (4) 31
147. Angle of minimum deviation for a prism
of refractive index 1.5 is equal to the
angle of the prism. Then the angle of the
prism is (given cos 41 = 0.75)(1) 62 (2) 41
(3) 82 (4) 31
148. fdlh /kkrq dh dk;Z Qyu3 ev gks rks mldhnsgyh rjaxnS/;Z gksxk
(1) 4133 A (2) 4000 A
(3) 4500 A (4) 5000 A
148. If work function of metal is 3 ev then
threshold wavelength will be
(1) 4133 A (2) 4000 A
(3) 4500 A (4) 5000 A
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149. H-ijek.kqds fuEu tkZ Lrj dh tkZ 13.6evgSA rks f}rh; mksftr voLFkk esa bysDVkWu
dks vk;fur gksus ds fy, vko;d tkZ dhek=k gksxh
(1) 1.51 ev (2) 3.4 ev
(3) 13.6 ev (4) 12.1 ev
149. The ground state energy of H-atom is
13.6 ev. The energy needed to ionize H-
atom from its second excited state
(1) 1.51 ev (2) 3.4 ev
(3) 13.6 ev (4) 12.1 ev
150. fuEufyf[kr fp=kuqlkj blds foU;kl dkifj.kkeh xsV dkSu-lk gksxk
(1) NAND
(2) XOR
(3) OR
(4) dksbZ Hkh ugha
150. The following configuration of gate is
equivalent to
(1) NAND
(2) XOR
(3) OR
(4) none of these
OROR
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