Lecturer Physics exam

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 %

www

.satishl

ectu

rer.co

m


2/30


3/30

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

www

.satishl

ectu

rer.co

m


4/30

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( +


(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


(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

www

.satishl

ectu

rer.co

m


5/30

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%

www

.satishl

ectu

rer.co

m


6/30

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


7/30

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

www

.satishl

ectu

rer.co

m


8/30

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

www

.satishl

ectu

rer.co

m


9/30

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

www

.satishl

ectu

rer.co

m


10/30

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 ,


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

www

.satishl

ectu

rer.co

m


11/30

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

www

.satishl

ectu

rer.co

m


12/30

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

www

.satishl

ectu

rer.co

m


13/30

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


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

www

.satishl

ectu

rer.co

m


14/30

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


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


15/30

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`


16/30

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

www

.satishl

ectu

rer.co

m


17/30

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

www

.satishl

ectu

rer.co

m


18/30

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

www

.satishl

ectu

rer.co

m


19/30

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


20/30

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


21/30

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


22/30

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


23/30

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


24/30

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

www

.satishl

ectu

rer.co

m


25/30

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

www

.satishl

ectu

rer.co

m


26/30

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

www

.satishl

ectu

rer.co

m


27/30

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

www

.satishl

ectu

rer.co

m


28/30

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

www

.satishl

ectu

rer.co

m


29/30

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

www

.satishl

ectu

rer.co

m


30/30

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

www

.satishl

ectu

rer.co

m

Documents

Lecturer Physics exam