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1. The hybridization state of C atom in butendioic acid is :

(1) sp2

(2) sp3

2. Which of the following is not a isomer of pentane :

(1) n-pentane

(2) 2, 2-dimethy 1 propane

(3) 2, 3-dimethy 1 butane

(4) 2-methy 1 butane

3. The oxidation number of C atom in Ch2CI2 and CCI4 are respectively :

(1) -2 and – 4 (2) 0 and – 4 (3) 0 and 4 (4) 2 and 4

4. Which of the following dissolves in lonic solvents :

(1) C6H5 (2) CH3OH (3) CCI4 (4) C5H12

5. The conjugate acid of HS is :

(1) S-2 (2) H2S2 (3) both two (4) none

6. Phenolphthalein of pH range [8-10] is used in which of the following type of

titration as a suitable indicator :

(1) NH4OH and HCI

(2) NH4OH and HCOOH

(3) NH4OH and C2H4O2

(4) NaOH and C2O4H2



7. Which of the following is iron are :

(1) Malachite (2) Hernatite (3) Siderite (4) Limonite

8. The molar concentration of chloride ions in the resulting solution of 300

ml.of 3.0 M NaCI and 200 ml. of 4.0 M BaCl2 will be :

(1) 1.7 M (2) 1.8 M (3) 5.0 M (4) 3.5 M

9. Which of the following has least bond energy :

-2 (2) N2

(1) N2

10. Which of the following species has highest bond energy :

-2 (2) O2

(1) O2

11. Which of the following compound is not aromatic :

(1) 1, 3-cyclobutene

(2) pyridine

(3) furane

(4) thiophene

(3) both two (4) sp

-

(3) N2

+

(3) O2



12. Which of the following compound is used as refrigerant :

(1) CCI2F2

(2) CCI4

(3) CF4

(4) Acetone

13. Which of the following is weak acid :

(1) C6H6 (2) CH3-C≡CH (3) CH2=CH2 (4) CH3-C≡C-CH3

14. L.P.G. mainly consist of the following :

(1) Methane (2) Hydrogen (3) Acetylene (4) Butane

15. The solubility product of CaCo3 is 5 x 10-9. The solubility will be :

(1) 2.5 x 10-5 (2) 7 x 10-5 (3) 2.5 x 10-4 (4) 2.2 x 10-9

16. The outer electronic configuration of alkali earth metals is :

(1) nd10 (2) ns1

17. The nature of 2, 4, 6-trinitrophenol is :

(1) Neutral (2) Basic (3) Acidic (4) Weak basic

18. Which of the following group is sharp ortho and para directive :

(1) –C6H5 (2)-OH (3) –CH3 (4) –CI

19. By which of the following process hydrocarbons are found from petroleum :

(1) combustion

(2) fractional distillation

(3) addition

(4) all above

20. A sample of petroleum contains 30% n-heptane, 10% 2-methyl hexane and

60% 2, 2, 4-trimethyl pentane, the octane no. of this sample will be :

(1) 30% (2) 60% (3) 10% (4) 70%

21. In which of the following halogens p-electrons does not take part in

resonance :

(1) CH2=CH-CH2Cl (2) BrC6H5

(3) C6H5Cl (4) CH2=CHCl

22. Which of the following statement is false :

(1) 40% solution HCHO is known as formalin

(2) HCHO is least reactive in its homologous series

(3) The B.P. of isovarelaldehyde is less than n-varelaldehyde

(4) The boiling point of ketones are higher than that of aldehydes

23. If n + ιι = 8 then the expected no. of orbitals will be :

(1) 4 (2) 9 (3) 16 (4) 25

(3) np6



Alc. KOH 2Cl2 Ca(OH)2

24. A B C here the compound C will be :

(1) Lewsite (2) Westron (3) Acetylene tetra chloride (4) Both 2 and 3



25. Which of the following is least hydrolysed :

(1) BeCl2 (2) MgCl2 (3) CaCl2 (3) BaCl2



26. The laughing gas is :

(1) N2O4 (2) NO (3) N2O (4) N2O5

27. The hydrogen ion concentration of a solution is 3.98 x 10-6 mole per liter. The

pH value of this solution will be :

(1) 6.0 (2) 5.8 (3) 5.4 (4) 5.9

28. The reaction of sodium acetate and sodalime gives :

(1) Butane (2) Ethane (3) Methane (4) Propane

29. Which of the following acids does not contain – COOH group :

(1) Carbamic acid (2) Barbituric acid

(3) Lactic acid (4) succinnic acid

30. Which of the following compound of xenone does not exists :

(1) XeF6 (2) XeF4 (4) XeF5 (4) XeF2

31. FeSO4, 7H2O is :

(1) Mohr’s salt (2) Blue vitriol (3) Green vitriol (4) White vitriol

32. The solution of BiCl3 in dil. HCI when diluted with water white precipitate is

formed which is :

(1) Bismith oxychloride (2) Bismith oxide

(3) Bismith hydroxide (3) none of these

33. The strongest acid is :

(1) acetic acid

(2) trichloroacetic acid

(3) dichloracetic acid

(4) monochloroacetic acid

34. The false statement regarding alkane is :

(1) This does not perform polymerization reaction

(2) This does not gives elimination reaction

(3) It does not disappear the colour of dilute KMnO4 solution

(4) It does not decolourise bromine water

35. Which of the following is strongest base :

(1) C6H5NH2 (2) CH3NH2



(3) NH3 (4) CH3CONH2

36. Which of the following aromatic compound gives sulphonation reaction very

easily :

(1) Chlorobenzene (2) Nitrobenzene (3) Toluene (4) benzene



37. The geometry of I3- is :

(1) Triangular (2) Linear (3) Tetrahedral (4) T-shape

38. The half life of a radio active element is 140 days. 1 gm. of this element after

560 days will become :

(1) 1 gm (2) 1 gm (3) 1gm. (4) 1 gm.

16 4 8 2

39. The volume concentration of hydrogen peroxide 6.8% concentration will be :

(1) 5 (2) 11.2 (3) 22.4 (4) 20

40. Which of the following on combustion give maximum energy :

(1) Ethane (2) Propane (3) Methane (4) Butane

Anhy. AICI3

41. C6H6 + CH3CI C6H5CH3 + HCI The name of above reaction is :

(1) Gattermann (2) Reimer-tiemann

(3) Friedel-Craft (4) Cannizaro

42. The oxidation state of Cr in K2Cr2O7 is :

(1) + 4 (2) + 3 (3) + 6 (4) + 5

43. The natural rubber is the polymer of :

(1) 1, 3- butadiene (2) polyamide (3) isoprene (4) none of these

44. Nylone-66 is a :

(1) polyester (2) polyamide (3) polyacrylate (4) none of these

45. 2NO(g) + CI2 (g) →→ 2 NOCI The equilibrium constant for this reaction is :

←←

(1) Kc = [NOCI]2

[NO]2

(3) Kc = [NOCI]2

[NO]2

A

46. C6H6 + CO + HCI C6H5CHO + HCI here A is :

(1) anhydrans ZnO (2) V2O5/4500

(3) anhydrous AICO3 (4) solid KOH

(2) Kc = [NOCI]2

[CI2}2 [2NO]2

__ (4) Kc = [2NOCI]____

[CI2

] [2NO][CI]



47. The values of for HCN and CH3COOH are 7.2 x 10-10 and 1.75 x 10-5 (at 250

C) respectively. The strongest acid amongst them is :

(1) CH3COOH (2) HCN (3) both (4) none of these



48. In which of the following carbon atom (asterisk) is asymmetric :

(1) CH3CH2CH (CH3) CH2OH

(2) CH3CH2CH (CH3) CHOH

(3) CH3CH2CH2CH2CH2OH

(4) CH3CH2CH (CH3)CH2OH

49. Benzene reacts with CH3COCI in presence of Lewis acid AICI3 to form :

(1) Acetophenone (2) Toluene (3) Benzyl Chloride (4) Chlorobenzene

50. Which of the following is reducing agent :

(1) H2S (2) HNO3 (3) H2O (4) K2Cr2O7

51. In which of the following alkyl chloride the possibility of SN1 reaction

mechanism is maximum :

(1) (CH3)2CHCI (2) (CH3)3C-CI (3) CH3CI (4) CH3CH2CI

52. The energy produced realated to mass decay of 0.02 amu is :

(1) 28.2 MeV (2) 931 MeV (3) 18.62 MeV (4) none of these

53. The mole of hydrogen ion in 50 ml. of 0.1 M HCI solution will be :

(1) 5 x 102

54. Petroleum is mainly consist of :

(2) 5 x 10-3 (3) 5 x 103

(1) Aliphatic alcohol

(2) Aromatic hydrocarbon

(3) Alipnetic hydrocarbon

(4) None of these

∆∆

55. C6H6OCH3 + HI …….. + ……….. The products in the above reaction

will be :

(1) C6H5I+CH3OH (2) C6H5CH3+HOI

(3) C6H5OH+CH3I (4) C6H6+CH3OI

56 F3 is :

(1) Bronsted base (2) Lewis base (3) Lewis acid (4) Bronsted acid

57. Which of the following compound gives violet colour with FeCI3 solution:

(1) Benzaldehyde (2) Aniline (3) Nitrobenzene (4) Phenol

58. Hypo solution forms which of the following complex compound with AgCI :

(1) Na5[Ag(S2O3)3] (2) Na3[Ag(S2O3)2]



(3) Na2{Ag(S2O3)2] (4) Na3[Ag(S2O3)3]

59. Molecular oxygen is :

(1) ferro magnetic (2) diamagnetic (3) para magnetic (4) non magnetic

60. Bonds in acetylene are :

(1) 2π bonds (2) one π bond (3) 3π bonds (4) none of these

61. The false statement for Griynaed reagent is :

(1) It gives tertiary alcohol with acetamide

(2) It gives tertiary alcohol with acetone

(3) It gives secondary alcohol with acetaldehyde

(4) It gives primary alcohol with formaldehyde

62. Which of the following alkane exists is liquid state at normal temperature :

(1) C20H42 (2) C3H8 (3) C8H18 (4) CH4

63. The solubility of AgCI at 250

(1) Potassium chloride solution

(2) AgNO3 solution

(3) Water

(4) All above

64. The weight of a benzene molecule is :

(1) 78 gm. (2) 7.8 gm. (3) 13 x 10-23 (4) none of these

65. CuFeS2 is :

(1) iorn pyrites (2) malachite (3) chalcosite (4) chalcopyrites

66. Primary halides follow the following reaction mechanism :

(1) SN1 (2) SN2 (3) both (4) none of these

67. C and Si belong to the same group of periodic table, CO2 is a gas and SiO2 is a :

(1) liquid (2) gas (3) solid (4) none of these

68. H2S is a gas while H2O is a liquid because :

(1) there is association due to hydrogen bonding

(2) bond energy of OH high

(3) the ionization potential of oxygen is high

(4) the electro negativity of oxygen is high

69. “The negative part of the molecule adding to the double bond goes to that

unsaturated asymmetric carbon atom which is linked to the least number of

hydrogen atoms.” This statement is related to :

(1) Markownikoff’s law

(2) Peroxide effect

(3) Bayer’s law of distortion



(4) none of these

70. The conjugate base of NH3 is :

(1) N2H4 (2) NH2

71. (a) N2 and (b) C2H2. The nos. of ππ and σσ bond in the molecules are respectively :

(1) (a) 2,2 (b) 2,2 (2) (a) 1,2 (b) 2,1

(3) (a) 2,1 (b) 2,3 (4) (a) 2,1 (b) 2,1

72. In which of the following compound there are maximum no. of sp2

atoms:

(1) Benzene (2) 1,3,5-hexatriene

(2) 1,2,4-hexatriene (4) both 1 and 2

73. The shape of the molecule having hybrid orbitals of 20% character will be :

(1) octahedral (2) tetrahedral

(3) square planer (4) triangular bipyramidal

74. The pH of a solution is 5. If the dilution of this solution is increased by 100 times,

the pH value will be :

(1) 5 (2) 7 (3) 9 (4) 8

75. The required amount of oxygen for combustion of 20 ml. of gaseous

hydrocarbon is 50 ml. The hydrocarbon will be :

(1) C2H2 (2) C2H4 (3) C2H6 (4) C3H4

76. The formula of Celestine is :

(1) SrSO4 (2) SrCO3 (3) SrO (4) SrCl2

77. CuCl2 + →→ Cu + Cl2. The required amount of electricity for this reaction is :

(1) 4 faraday (2) 2 faraday (3) 1 faraday (4) 3 faraday

78. Nitrogen does not forms NF5 because :

-

(3) NH4

(1) The bondenergy of N≡N is very high

(2) Vaccent d-orbitals are not present

(3) N belongs to V group

(4) There is inert effect

79. The normal temperature when raised by 100

(1) lowered by 2 times

(2) increased by 2 times

(3) lowered by 10 times

(4) increased by 10 times

80. Which of the following gives red precipitate with ammonical cuprous

chloride :

(1) Propane (2) Ethane (3) Methane (4) Acetylene



81. [Cu(NH3)4]

(1) dsp2

82. A solution contains CI-, I-

capable to precipitate all of above when added in this solution :

(1) Pb2+ (2) Ba2+ (3) Hg2+ (4) Cu2+

83. Fool’s gold is :

(1) Cu2S (2) FeS2 (3) Al2O5 (4) CuFeS2

84. In which of the following compound the central atom is in sp2

(1) OF2 (2) HgCl2 (3) XeF2 (4) NH2

85. The number of alkenyl groups possible from C4H7

(1) 7 (2) 5 (3) 3 (4) 8

86. The tetraethyl lead mixed in petrol is works as :

(1) Cooling agent

(2) Anti knocking agent

(3) Bleaching agent

(4) None of these

87. The alkaline hydrolysis of ester is known as :

(1) dehydrogenation (2) dehydration (3) esterification (4) saponification

88. The degree of ionization of 0.4 M acetic acid will be : (Ka = 1.8 x 10-5)

(1) 6.71 x 10-3 (2) 1.6x10-3

(3) 0.4x1.8x10-5 (4) 1.8x10-5

89. Haber process is used for production of which of the following :

(1) NH3 (2) HNO3 (3) H2SO4 (4) O3

90. The pka value of phenolphthalein is 9.1 and the pH range is 8-10. In which of

the following titrations it can be used as an indicator :

(1) NH4OHand HCI

(2) NH4OH and CH3COOH

(3) NaOH and HCI

(4) NH4OH

91. Number of electrons in a one molecule of CO2 :

(1) pb2+ (2) Hg2+ (3) Ba2+ (4) Cu2+



92. Which of the following species shows the maximum magnetic moment :

(1) Mn+6 (2) Ni2+ (3) Fe3+ (4) Ag+

93. K sp value of CaF2 is 3.75 x 1011 The solubility will be :

2+ snows the following hybridization :

(2) sp3

d (3) dsp3


(1) 1.45x10-11 mol/litre-1 (2) 3.45x10-4 mol/liter-1

(3) 2.05x10-4 mol/liter-1

(4) 3.75 x 10-11 mol/liter-1

94. When Pb3O4 is heated with dilute H N O3 it gives :

(1) pbO2 and pb(NO3)2

(2) pbO and pb(NO3)2

(3) pbO2

(4) pbO

95. C-H bond length is least in :

(1) Acetylene (2) Methane (3) Ethylene (4) Ethane

96. The minimum nos. of carbon atoms in ketones which will show chain

isomerism will be :

(1) Seven (2) four (3) six (4) five

97. Which of the following organic compound could not be dried by anhydrous

CaCI2 :

(1) ethanol (2) benzene (3) chloroform (4) ethyl acetate

98. Which of the following compound forms white precipitate with bromine

water :

(1) Nitrobenzene (2) Phenol (3) Benzene (4) all above

99. Gypsum is :

(1) CaSO4.H2O (2) CaSO4. 2H2O

(3) 2CaSO4. 2H2O (4) CaSO4

100.Which of the following carbonium ion is most stable :

+ +

(1) CH3-CCH3 (2) CH3CH2

CH3

+ +

(3) CH30CH-CH3 (4) CH3


1.(2) 2.(3) 3.(3) 4.(2) 5.(2) 6.(4) 7.(1) 8.(3) 9.(1) 10.(4) 11.(1)

12.(1) 13.(2) 14.(4) 15.(2) 16.(4) 17.(3) 18.(2) 19.(2) 20.(2) 21.(1) 22.(2)

23.(3) 24.(4) 25.(4) 26.(3) 27.(3) 28.(3) 29.(2) 30.(3) 31.(3) 32.(1) 33.(2)

34.(3) 35.(2) 36.(3) 37.(2) 38.(1) 39.(4) 40.(4) 41.(3) 42(3) 43.(3) 44.(2)

45.(3) 46.(3) 47.(1) 48.(1) 49.(1) 50.(1) 51.(2) 52.(1) 53.(2) 54.(3) 55.(3)

56.(3) 57.(4) 58.(3) 59.(3) 60.(1) 61.(1) 62.(3) 63.(3) 64.(3) 65.(4) 66.(1)

67.(3) 68.(1) 69.(1) 70.(2) 71.(3) 72.(4) 73.(4) 74.(2) 75.(1) 76.(2) 77.(2)

78.(2) 79.(2) 80.(4) 81.(1) 82.(1) 83.(2) 84.(4) 85.(4) 86.(2) 87.(4) 88.(1)

89.(1) 90.(3) 91.(1) 92.(3) 93.(3) 94.(1) 95.(1) 96.(4) 97.(1) 98.(2) 99.(2)

100.(1)

1. N molecules each of mass m and v velocity collides with a wall of a container and
then absorbed, the pressure applied on the wall is :
(1) mNV2 (2) mNV2 (3) 2 mNV2 (4) mNV2
3 2
2. The law of far a day is obtained by conservation of :
(1) Charge (2) Energy (3) Energy and magnetic field (4) Magnetic field
3. There is a q charge placed in the centre of a cube, then the emergent flux is :
(1) q (2) q (3) q (4) q_
6∈0 8 ∈0 2 ∈0 ∈0
4. Two thin lenses are put close to each other, focal length of the combination is :
(1) less than the small focal length
(2) more than the bigger focal length
(3) equal to the arithmetical average of the focal length
(4) equal to the geometrical average of the focal length
5. A car is moving on a horizontal circular path with 10 m/s constant speed. A rigid
body is suspended from ceiling of car with a 1 m. long light rod, the angle between
rod and path is :
(1) 600 (2) 450 (3) 300 (4) zero
6. Two sources of E1 and E2 emf r1 and r2 internal, resistances, are connected in the
parallel combination, the emf of the combination is :
(1) E1E2 (2) E2r1 + E1r2 (3) E1r1 + E2r2 (4) E1 + E2
E1+E2 r1 + r2 r1 + r2 2
7. In a AC circuit R = 0 ΩΩ, XL = 8ΩΩand XC = 6ΩΩphase difference between voltage
and current is :
(1) 110 (2) 450 (3) 370(4) 120
8. Relative permeability of a medium is r and relative permittivity is ∈∈∈r then the
velocity of an electro magnetic wave is :
(1) c (2) √∈rr (3) √0t0 (4) 1
∈00 r∈r r∈r

Physics 1
___________________
√ r∈r
9. Ration of radius of two soap bubbles is 2 : 1 then the ratio of their excess
pressure is :
(1) 2 : 1 (2) 4 : 1 (3) 1 : 4 (4) 1: 2
10. Ratio of sound velocities is H2 and O2 will be :
(1) 32 : 1 (2) 1 : 4 (3) 16 : 1 (4) 4 : 1
11. In which of the waves the energy is not propagated :
(1) em waves
(2) longitudional waves
(3) stationary waves
(4) transverse waves
12. A body of 2 kg. mass is moving under a force, relation between time and
displacement is x = t3 where x in meter and t in time work done in first two seconds
is : 3
(1) 1.6 J (2) 16 J (3) 160 J (4) 1600 J
13. A uniform chain of L length and M mass, two third part of chain is on a
frictionless table and one third part is vertically suspended, work done to pull the
whole chain on table, is :
(1) MgL (2) MgL (3) MgL (4) MgL
18 9 6 3
14. If the intensity and frequency of incident light is doubled then :
(1) photo electric current will become is times
(2) kinetic energy of the emitted electron will be increased and current will be 2 times
(3) kinetic energy of electrons will be 4 times
(4) the kinetic energy of electrons will be 2 times
15. A car travels half distance with 40 kmph and rest half distance with 60 kmph
then the average speed of car is :
(1) 60 kmph (2) 52 kmph (3) 48 kmph (4) 40 kmph
16. Two particle are moving with same velocities in the circular paths of r1 and r2
radius then the ratio of their centripetal forces is :
(1) r2 (2) r2 (3) r1 2 (4) r2 2
r1 √ r1 r2 r1
17. No. of electrons in the 92 U 235 nucleus is :
(1) 143 (2) 235 (3) 92 (4) zero

18. The wavelength of photon and electron is ph and e and energy (E) of the two is
same then :
(1) the difference can be obtain if E is given
(2) e>ph
(3) ph . e
(4) ph=e
19. A lift is moving with acceleration a in upward direction then the force applied by
mass m on the floor of lift will be :
(1) ma (2) m(g-a) (3) m(g+a) (4) mg
20. Two cars of m1 and m2 mass are moving in the circular paths of r1 and r2 radius,
their speed is such that they travels one cycle in the same time, the ratio of their
angular velocities is :
(1) m1r1 : m2r2 (2) 1 : 1 (3) r1 : r2 (4) m1 : m2
21. A ring of mass M, radius r is moving with angular velocity w, if another two
bodies each of mass m is placed on its diameter, the resultant angular velocity will
be :
(1) w(M + 2m) (2) w(M – 2m) (3) wM (4) wM
M (M + 2m) (m+m) (M+2m)
22. The wavelength of 1 ke V photon 1.25 x 10-9 m the frequency of Me V photon
will be:
(1) 1.24 x 1023 (2) 2.4 x 1023 (3) 2.4 x 1023 (4) 1.24 x 1015
23. Size of nucleusis of the order of :
(1) 10-13 cm (2) 10-10 cm. (3) 10-8 cm. (4) 10-15 cm.
24. If MI, angular acceleration and torque of body is I, ∝and , it is revolving with
angular velocity then :
(1) = (2) M= 1 (3) = I(4) =I
I 
25. In a uniform circular motion :
(1) both acceleration and speed changes
(2) both acceleration and speed are constant
(3) both acceleration and velocity are constant
(4) both acceleration and velocity changes
26. Ratio of average kinetic evergies of H2 and O2 at a given temp. is :
(1) 1 : 1 (2) 1 : 4 (3) 1 : 8 (4) 1 : 16
27. To make the working of a machine, free of magnetism, the cover of this machine
must be of :
(1) non magnetic substance
(2) diamagnetic substance
(3) paramagnetic substance
(4) ferro magnetic substance

28. , and r are the wavelengths of k , kand kr lines of X-ray spectrum then :
(1) >a>r (2) < B<r (3) > > r (4) = = r
29. Angular momentum of electron of H atom is proportional to :
(1) 1 (2) 1 (3) √r (4) r2
r √ r
30. MI, rotational kinetic energy and angular momentum of a body is I, E and L
then :
(1) E= L2 (2) E2= 2I (3) E = 2IL (4) L = E2
2I L 2I
31. In a diode value, the state of saturation can be obtained easily by :
(1) high plate voltage and high filament
(2) low filament current and high plate voltage
(3) low plate voltage and high plate tem
(4) high filament current and high plate voltage
32. A magnet is dropped in a long coppertube vertically, the acceleration of magnet :
(1) equal to g (2) less than g (3) zero (4) greater than g
33. Joule-second is unit of :
(1) rotational power
(2) angular momentum
(3) rotational energy
(4) torgue
34. A 3 coulomb charge enerts 3000 N force in a uniform electrical field, the
distance between two points is 1 cm. potential difference will be :
(1) 9000 V (2) 1000 V (3) 90 V (4) 10 V
35. 1000 drops, each v volt, are combined to form a big drop, then the potential of
the drop will be how many times :
(1) 1 (2) 10 (3) 100 (4) 1000
36. A plane is revoloving around the earth with 100 km./hr. speed at a earth, the
changes in the velocity as it travels half circle is :
(1) 100 √2 kmph (2) 150 kmph (3) 200 kmph (4) zero
37. 3 x 107 kg. water is initially constant and it is displaced 3 m. by applying 5 x 104
N force. Velocity of water will be (if resistance of water is zero) :
(1) 50 m/sec. (2) 0 1 m/sec. (3) 60 m/sec. (4) 1.5 m/sec.

38. In a wheat stone circuit P = Q = 10Ωand R = S = 15 Ωand G = 20 Ω. If a cell of 1.5
volt emf is used, the current drawn from the cell is :
(1) 0.021 amp (2) 0.025 amp (3) 0.060 amp (4) 0.125 amp
39. Two waves of same frequency and different amplitude, if the phase difference is /2
then the Lissajou’s figure will be :
(1) 8 shape (2) an ellipse (3) a circle (4) a straight line
40. A monoatomic gas (r = 5/3) and a diatomic gas (r= 7/5) are mixed in equal ratio then
the r of mixture will be :
(1) 3.07 (2) 1.53 (3) 1.5 (4) 1.4
41. Velocity of e.m. waves in paraffine is 2.07 x 108 m/sec. then the dielectric constant is:
(1) 2.10 (2) 1.87 (3) 1.45 (4) 1.22
42. After emission of a -particle, the nucleus :
(1) A – 4, Z – 2 (2) A,Z-1 (3) A, Z-2 (4) A + 2, Z
43. Charge on a proton is 9.6 x 107 c/kg. A proton is moving in a 1T magnetic field in 0.5
m radius circular path, the energy of proton in Mev.
(1) 16.34 (2) 12.02 (3) 8.25 (4) 4.84
44. If d2+ x = 0 then the angular frequency will be :
dx2
(1) √(2) 2 (3) (4) zero
45. Noble prize presented to Einstein for :
(1) therories of LASER
(2) photo electric effect
(3) theory of relativity
(4) theory of specific heat in solids
46. Before saturation current the ratio of plate currents at 400 v and 200 v plate voltage
is:
(1) 1 (2) 2 (3) 2√2 (4) √2
2 4
47. If I = I0 sin (t - /2) and E = E0 sin t then the power loss is :
(1) EI (2) E0I0 (3) E0I0 (4) zero
√2 2 √2
48. If the temp. of an ideal gas filled in a container is increased 10C, the increase in
pressure is 0.4%, the initial temp. of the gas is :
(1) 1200C (2) 2000K (3) 2500K (4) 2500C
49. Plate resistances of two triode values is 2KΩand 4KΩ, amplification factor of each
of the value is 400. The ratio of voltage amplifications, when used with 4kΩload
resistance, will be :
(1) 10 (2) 4/4 (3) 4/3 (4) 16/3

50. Relation between displacement x and time t is x = 2 – 5t + 6t2, the initial velocity will
be:
(1)-3 m/sec. (2) 12 m/sec. (3) 2 m/sec. (4) – 5 m/sec.
51. Focal length of a convex lens is 16 cm. it is dipped in water. The refractive indices of
the substance of lens and water are 1.5 and 1.33 resp., now the focal length will be :
(1) 64 cm. (2) 18 cm. (3) 24.24 cm. (4) 16 cm.
52. In a half wave rectifier circuit, the input signal frequency is 50 Hz, the the output
frequency will be :
(1) 25 Hz (2) 50 Hz (3) 200 Hz (4) 100 Hz
53. In the following circuit :
B A P
C D Q
(1) the loop will be displaced along the length of wire
(2) PQ unchanged
(3) the loop will repell the wire
(4) wire will attract the loop
54. In a triode the ratio of small change in plate voltage and small changes in grid
voltage is, if plate current is constant :
(1) DC plate resistance
(2) mutual conductance
(3) AC plate resistance
(4) amplification factor
55. Two particles accelerated with same voltage eneters in a uniform magnetic field
perpendicularly, the radii of the circular paths is R1 and R2, the charge on particles is
same the ratio of m1 is :
2 m2 2
(1) R2 (2) R2 (3) R1 (4) R1
R1 R1 R2 R2
56. Light Velocity in diamond is ( = 2.0)
(1) 60 x 1010 cm/sec.
(2) 2 x 1010 cm/sec.
(3) 3 x 1010 cm/sec.
(4) 1.5 x 1010 cm/sec.
57. If Arsenic is dopped to silicon then its conductivity :
(1) becomes zero
(2) unchanged
(3) increases
(4) decreases

58. Two condensers of c and 2c capacity are connected in parallel and these are charged
upto v volt. If the battery is removed and dielectric medium of k constant is put between
the plates, then the potential at each condenser is :
(1) v (2) 2+ k (3) 2v (4) 3v
k + 2 3v k + 2 k+2
59. Equation of wave is y = 15 x 10-2 sin (300t – 100x) where x in meter and t in sec. the
wave velocity is :
(1) 1.5 m/sec. (2) 3 m/sec. (3) 0.5 m/sec. (4) 1 m/sec.
60. Escape velocity at the surface of earth is 11 km/sec., if radius of earth is doubled then
the escape velocity will be :
(1) 15.5 km/sec. (2) 5.5 km/sec. (3) 11 km/sec. (4) 22 km/sec.
61. Kinetic energies of two bodies of 1 kg. and 4 kg. are same, the ratio of their
momentum is :
(1) 1 : 16 (2) 1 : 2 (3) √2 : 1 (4) 4 : 1
62. A body takes 5 minute to cool from 300C to 500 C. How much time it will take to
cool from 600 C to 300 C, if room temp. is 200 C :
(1) 40 minute (2) 10 minute (3) 30 minute (4) 20 minute
63. AC voltage is v = 200 sin 300t and if R = 10Ωand L = 800 mH, peak value of current
is :
(1) 1.83 (2) 1.5 (3) 2.0 (4) .83
64. Two charges + q and – q are placed at r distance from each other. If one of the charge
is stationary and other is rotated around, work done is one circle is :
(1) kq2 (2) kq (3) kq2 (4) zero
r2 r r
65. Peak value of AC current is 4√2, RMS current is :
(1) 2√2 (2) 8 (3) 4 √2 (4) 4
66. A monoatomic gas is compressed to its 1/8th volume adiabatically (r = 5/3), the
pressure will be :
(1) 32 times (2) 40 times (3) 8 times (4) 24 times
3 5
67. A condenser is charged and then battery is removed, a dielectric plate is put between
the plates of condenser, then correct statement is :
(1) Q constant V and U decreases
(2) Q constant V increases U decreases
(3) Q increases V decreases U increases
(4) None
68. The MI of a disc wrt its diameter is I, MI wrt. And axis passing through its
circumference and parallel to diameter is :

(1) 41 (2) 61 (3) 31 (4) 51
69. Length of two wires is 0.5 m and distance between the wires is 1 m. If 1 amp.
current is passed in the wires, force per unit length between the wires is :
(1) 4 x 10-7 (2) 2 x 10-7 (3) 10-7 (4) None
70. Relation between internal energy U and absolute temp. T of an ideal gas as kinetic
theory of gases, is :
(1) U does not depends upon T
(2) U ∝T2
(3) U ∝T
(4) U ∝√T
71. Light wavelength in a glass is 6000Ǻ and refractive index is 1.5, the wavelength
of light is :
(1) 12000 Ǻ (2) 4000 Ǻ (3) 9000 Ǻ (4) 6000 Ǻ
72. Two sources of sound A & B placed near to each other produces 4 beats per second.
If A is loaded with wax then 2 beats/sec. are produced. If the frequency of A is 256 Hz,
The frequency of B will be :
(1) 262 (2) 260 (3) 252 (4) 250
73.Work done to rotate a dipole by a 900 angle, is :
(1) – PE (2) – 2 PE (3) 2PE (4) PE
74. Zener diode may be used as a :
(1) rectifier (2) oscillator (3) amplifier (4) voltage regulator
75. Wavelength of first line of Balamer series is 6561 Ǻ then the wavelength of second
line of Balmer series will be :
(1) 3500 Ǻ (2) 4860 Ǻ (3) 6561 Ǻ (4) 2430 Ǻ


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Eshwar Nagar,
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Karnataka 576104 ‎
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