KEAM 2025 Question Paper B.Pharm with Answers (29 April 2025)

FOR KEAM EXAM PREPARATION

KEAM 2025
Question Paper ·
B.Pharm
EXAM YEAR TYPE SUBJECT INCLUDES

KEAM 2025 Question Paper B.Pharm Answers
DATE

29 April 2025

Notes · Sample Papers · Previous Year Papers · Mock Tests

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m .co FINAL ANSWER KEY as
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Question Paper Code: 16/2025/OL
Exam:KEAM 2025 BPHARM-3
Date of Test: 29-04-2025

A solution is prepared by adding 4 g of a substance to 46 g of ethanol. What is the mass
1. percentage of the solute?
A ) 8%
m
B ) 10%
m .co
C ) 4%
.co s e m
D ) 6%
s em l a
E ) 12%
g la ag
a

2. The order of energy of orbital in the same subshell is
A) 𝐸 (𝑁𝑎) > 𝐸 (𝐿𝑖) > 𝐸 (𝐾)
B) 𝐸 (𝐿𝑖) > 𝐸 (𝑁𝑎) > 𝐸 (𝐾)
C) 𝐸 (𝐾) > 𝐸 (𝑁𝑎) > 𝐸 (𝐿𝑖)
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D) 𝐸 (𝐿𝑖) > 𝐸 (𝐾) > 𝐸 (𝑁𝑎)
E) 𝐸 (𝑁𝑎) > 𝐸 (𝐾) > 𝐸 (𝐿𝑖)
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Which of the following is correct about the stability of half filled and completely filled
subshells?

(i) Relatively small shielding (ii) Larger coulombic repulsion energy
3.
(iii) Smaller exchange energy (iv) Smaller coulombic repulsion energy

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(v) Larger exchange energy
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A ) (i), (ii) and (iii)
s e m
s e B ) (i), (iii) and (v)

g l a
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C ) (i), (iv) and (v)
g a
a D ) (ii), (iii) and (v)
E ) (i), (ii) and (iv)

4. The correct order of ionization enthalpy is
A) C<B<O<N
B) B<O<C<N
m .
C) N<C<O<B
.co s e m
D) B<C<O<N
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 1 of 17

E) C<B<O<N

5. The increasing order of atomic radii is
A) C<N<O<F
B) F<O<C<N
C) O<F<N<C
D) F<N<O<C
E) F<O<N<C

6. Which of the following molecule has expanded octet?
A) 𝐵𝐶𝑙
B ) 𝑁𝑂
C ) 𝑁𝑂
D ) 𝑆𝐹

E ) 𝐵𝑒𝐻

7. Which of the following molecule has 3 bond pairs and 2 lone pairs of electrons?
A) 𝑁𝐻
B ) 𝑆𝑂

C ) 𝐶𝑙𝐹

D ) 𝑆𝐹

E) 𝐻 𝑂

8. Which of the following is an extensive property?
A) Molar volume
B ) Internal energy
C ) Temperature
D ) Density
E ) Pressure

Which of the following molecule has the highest standard enthalphy change of fusion (
9.
Δ 𝐻 ) (𝑖𝑛 𝑘𝐽 𝑚𝑜𝑙 ) ?
A) 𝐻 𝑂

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c. o B ) 𝐶𝑂 s e m
m a
se C) 𝐶 𝐻
ag l
D ) 𝐶𝐶𝑙
E ) 𝑁𝑎𝐶𝑙

At equilibrium, the concentration of 𝑁 = 5×10 𝑀, 𝑂 = 2.8×10 M and 𝑁𝑂 = 1.4×10
𝑀 in a sealed vessel at 800 K. What is the value of Kc for the reaction at same
10. temperature? m
m
c. o 𝑁 ( ) + 𝑂 ⇌ 2𝑁𝑂 m .co
m s e
A) 0.41
s e l a
B ) 0.14
g l a ag
C ) 0.18
D ) 0.5
a
E ) 0.28

∘
11. 𝐶𝑢( ) + 2𝐴𝑔( ) ⇌ 𝐶𝑢( ) + 2𝐴𝑔( ) ( 𝐸 = 0.295 V, 2.303 RT/F = 0.059 V)

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A) 10
B ) 10
e m
C ) 10
las
D ) 10 ag
E ) 10
Correct Answer:-Question Cancelled
Which of the following compound is used to cover the surface of the metallic object to
12. prevent corrosion?
A ) Phenol
B ) Benzene
m
m
C ) Acetone
.co
m .co
D ) Bisphenol
s e m
s e E ) Nitrophenol
g l a
g la a
a Correct Answer : Option D

13. Which of the following gas has the lowest solubility in water at 298 K?
A) Argon
B ) Carbon dioxide
C ) Formaldehyde
D ) Methane
E ) Vinyl chloride
m .
.co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 3 of 17

In a reaction, 3A → Products, the concentration of ‘A’ decreases from 0.6 mol 𝐿 to 0.3
14.
mol 𝐿 in 20 minutes. What is the rate of the reaction during this interval?
A) 0.05 mol 𝐿 𝑚𝑖𝑛
B ) 0.005 mol 𝐿 𝑚𝑖𝑛
C ) 0.03 mol 𝐿 𝑚𝑖𝑛
D ) 0.6 mol 𝐿 𝑚𝑖𝑛
E ) 0.003 mol 𝐿 𝑚𝑖𝑛

The following data were obtained for the reaction , 2𝑁𝑂( ) + 𝑂 ( ) → 2𝑁 𝑂( ) at
different concentrations,

15.

The rate law of this reaction is
A ) Rate = 𝑘[𝑁𝑂][𝑂 ]

B) Rate = 𝑘[𝑁𝑂][𝑂 ]
C) Rate = 𝑘[𝑁𝑂] [𝑂 ]
D) Rate = 𝑘[𝑁𝑂] [𝑂 ]
E) Rate = 𝑘[𝑁𝑂] [𝑂 ]

Which of the following transition element has both 𝑏𝑐𝑐 and 𝑐𝑐𝑝 structures at normal
16. temperature?
A) Titanium
B ) Vanadium
C ) Silver
D ) Chromium
E ) Manganese

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c. o17. The most common oxidation states of chromium are s e m
m a
se A) +2 and +7
ag l
B ) +2 and +3
C ) +1 and +6
D ) +3 and +6
E ) +2 and +4

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18. What is the magnetic moment of divalent ion with three unpaired electrons?
m
A) 2.84 BM
m .co s e m
B ) 5.92 BM
s e l a
C ) 3.87 BM
g l a ag
D ) 4.90 BM
E ) 1.73 BM
a

19. The bond angle of Cr-O-Cr bond in dichromate ion is
A) 90°
B ) 126°
m
C ) 109°
m .co
D ) 60°
s e
E ) 120°
g la
a
20. Which of the following transition metal oxide is used in dry battery cells?
A ) 𝑍𝑛𝑂
B ) 𝑇𝑖𝑂
C) 𝑉 𝑂
D ) 𝑁𝑖𝑂
o m
E) o m
𝑀𝑛𝑂 . c
. c e m
m
e Correct Answer : Option E l as
las ag
ag 21. The first and second ionization enthalpies of lanthanoids are comparable with the element
A) Chromium
B ) Calcium
C ) Germanium
D ) Cesium
E ) Cadmium

m .
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s e
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 5 of 17

22. The percentage of Cr(III) in Ruby is
A) 0.5 to 1 %
B ) 1 to 2 %
C ) 0.1 to 0.4 %
D ) 2 to 3 %
E ) 0.1 to 0.3 %

23. Which of the following is an outer orbital complex?
A ) [𝐶𝑜(𝑁𝐻 ) ]

B) [𝑀𝑛(𝐶𝑁) ]
C) [𝐶𝑜(𝐶 𝑂 ) ]
D) [𝑀𝑛𝐶𝑙 ]
E) [𝐹𝑒(𝐶𝑁) ]

24. What is the colour of the complex [𝑁𝑖(𝑒𝑛) ] in water?
A) Pale blue
B ) Purple
C ) Violet
D ) Green
E ) Orange

25. Hardness of water is estimated by titration with
A) DMG
B ) cupron
C ) α-nitroso-β-napthol
D ) 𝑁𝑎 EDTA
E) ethylenediamine

26. The formula of Ammonium phosphomolybdate is
A ) (𝑁𝐻 ) 𝑃𝑂 .12𝑀𝑜𝑂

B) (𝑁𝐻 ) .12𝑀𝑜𝑂
C) (𝑁𝐻 ) 𝑃𝑂 .12𝑀𝑜𝑂
D) (𝑁𝐻 ) 𝑃𝑂 .12𝑀𝑜𝑂

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c. o E ) (𝑁𝐻 ) 𝑃𝑂 .2𝑀𝑜𝑂 s e m
m a
se ag l

On complete combustion of 0.96 g of an organic compound gives 0.88 g of carbon dioxide
27. and 0.1 g of water. What is the percentage composition of carbon in the compound?
A) 22%
B ) 18%
C ) 16%
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D ) 20%
m
.co m
E ) 25%

s e
s em l a
la ag

g
a the following sodium salt of carboxylic acid is used for the preparation of n-
Which of
28. hexane by Kolbe’s electrolytic method?
A) 𝐶𝐻 𝐶𝐻 𝐶𝑂𝑂𝑁𝑎
B ) 𝐶𝐻 𝐶𝑂𝑂𝑁𝑎
C ) 𝐻𝐶𝑂𝑂𝑁𝑎
D ) 𝐶𝐻 𝐶𝐻 𝐶𝐻 𝐶𝐻 𝐶𝑂𝑂𝑁𝑎

E ) 𝐶𝐻 𝐶𝐻 𝐶𝐻 𝐶𝑂𝑂𝑁𝑎 m
.co
s em
g lisa used for the iodination of methane?
a
29. Which of the following oxidizing agent
A) 𝐻𝐼
B ) 𝐾𝑀𝑛𝑂

C ) 𝐾 𝐶𝑟 𝑂

D ) 𝐻𝐼𝑂

E ) 𝐾 𝐶𝑟𝑂

m
m
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m The product obtained on ozonolysis of 3-Ethylpen-2-ene are lase
m
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s A ) Methanal and 3-Hexanone g
l a a
ag B ) Pentanal and Propanone
C) Ethanal and Pentan-3-one
D ) Ethanal and 3-Hexanone
E ) Ethanal and Butanone

mrequired for reforming benzene from n-hexane is
31. The temperature and pressure .
A) 473K, 10-20 atm .co s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 7 of 17

B) 773K, 10-20 atm
C ) 523K, 100 atm
D ) 973K , 1-2 atm
E ) 573K, 10-20 atm

Methyl fluoride is prepared by heating methyl bromide in the presence of 𝐴g𝐹. This
32. reaction is known as
A) Swarts reaction
B ) Finkelstein reaction
C ) Sandmeyer’s reaction
D ) Wurtz reaction
E ) Kolbe’s reaction

Benzene diazonium chloride on treatment with reagent ‘X’ gives iodobenzene. The regeant
33. ‘X’ is
A) 𝐶𝑢 𝐼
B ) 𝐴g𝐼
C) 𝐼
D ) 𝐻𝐼
E ) 𝐾𝐼

34. Which of the following is not a chiral molecule?
A) 2-Chlorobutane
B ) 2,3-Dihydroxy propanal
C ) 2-Bromo propionic acid
D ) Butan-2-ol
E ) 2-Bromo-2-methoxypropane

The product obtained on the reaction of propanone with 𝐶𝐻 𝑀𝑔𝐵𝑟 followed by hydrolysis
35. is
A) 2-Methylpropan-2-ol
B ) Butan-1-ol
C ) Butan-2-ol
D ) 2-Methylpropan-1-ol
E ) 2-Methylpropane

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c. o36. The reagent used for the conversion of carboxylic acids to primary
s e malcohols is
m A ) 𝑃𝐶𝐶 la
se a g
B) 𝐿𝑖𝐴𝑙𝐻 / 𝐻 𝑂
C ) 𝑁𝑎𝑁𝑂 / 𝐻𝐶𝑙

D ) 𝑃𝑑 / 𝐻

E ) 𝑃𝑡 / 𝐻

m
m .co
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The order of acidity of the following compounds is
37. (i) 𝑜-Nitrophenol (ii) Phenol (iii) 𝑜-Cresol (iv) Ethanol
e m
em l as
l as
A ) (i) < (iii) < (ii) < (iv)
B ) (iii) < (i) < (ii) < (iv) ag
ag
C ) (i) < (ii) < (iii) < (iv)
D ) (iv) < (iii) < (ii) < (i)
E ) (iii) < (ii) < (i) < (iv)

When benzene is treated with carbon monoxide and hydrogen chloride in the presence of
38. anhydrous aluminium chloride, benzaldehyde is formed. The reaction is known as
m
A) Etard reaction
m .co
B ) Stephen reaction
s e
C ) Hell-Volhard-Zelinsky reaction
g la
D ) Gatterman-Koch reaction a
E ) Aldol reaction.

39. When 𝐶 𝐻 𝐶𝐻𝑂 reacts with the mixture of 𝐻𝑁𝑂 and 𝐻 𝑆𝑂 at 273-283K gives
A ) 𝑜- Nitrobenzaldehyde
B ) 𝑚-Nitrobenzaldehyde
o m
om
C ) 𝑝-Nitrobenzaldehyde . c
. cToluene e m
mD)
e E ) Nitrobenzene l as
las ag
ag Correct Answer : Option B

Match the following

Compound use
40.
(a) Benzaldehyde (i) food preservative
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(b) Methanoic acid (ii) nylon 6,6
(c) Sodium benzoate (iii) perfumary e m
em
(d) Hexanedioic acid (iv) Electroplating industry
l as
las ag
ag For more Question Papers, Sample Papers, Notes & Syllabus visit Page 9 of 17

A) a-(i), b-(ii), c-(iii), d-(iv)
B ) a-(iii), b-(i), c-(iv), d-(ii)
C ) a-(i), b-(iii), c-(ii), d-(iv)
D ) a-(ii), b-(iv), c-(i), d-(iii)
E ) a-(iii), b-(iv), c-(i), d-(ii)

The number of moles of alkyl halides required to convert primary amine into quaternary
41. ammonium salt is
A) 1
B) 2
C) 3
D) 4
E) 5

The order of boiling point of the following amines is
42.
(i) Butan-1-amine (ii) N-Ethylethanamine (iii) N,N-Dimethylethanamine
A ) (i)> (iii) > (ii)
B ) (i) > (ii) > (iii)
C ) (iii) > (ii)> (i)
D ) (iii) > (i) > (ii)
E ) (ii) > (i) >(iii)

An aromatic compound (X) of molecular formula, 𝐶 𝐻 𝐶𝑙, on ammonolysis gives
43. Y(Molecular formula, 𝐶 𝐻 N) . The compound ‘Y’ reacts with two moles of 𝐶𝐻 𝐶𝑙 gives
N, N-Dimethylphenylmethanamine. The compounds ‘X’ and ‘Y’ are
A ) Benzylchloride and Aniline
B ) Chlorobenzene and Aniline
C ) Benzylchloride and Benzylamine
D ) Chlorobenzene and Benzylamine
E ) Benzoylchloride and Benzylamine.

44. Oxidation of gluconic acid with nitric acid gives
A) n-hexane
B ) fructose
C ) glucose
D ) glyceraldehyde
E ) saccharic acid

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m .co s e m
se Correct Answer : Option E
g l a
a
45. The carbohydrates are stored in animal body as
A) cellulose
B ) starch
C ) glycogen
D ) amylopectin
E ) amylase
m
m .co
.co
e m
m are (B- Magnetic induction, E-electric field intensity) as
seof
46. The dimensions
la ag
l
g
A) 𝑀 𝐿 a𝑇

B) 𝑀 𝐿 𝑇
C) 𝑀 𝐿 𝑇
D) 𝑀 𝐿 𝑇
E) 𝑀 𝐿 𝑇
m
.co
s em
g la of 15 Ns. If time of hit is 0.2 s, the average
A hockey player hits a ball with an impulse
47. force exerted by the player on the a
ball is
A) 75 N
B ) 50 N
C ) 15 N
D ) 20 N
E ) 25 N

m
.co
m
c. Ifothe position of the particle as a function of time 𝑡 is →𝑟 = 8𝑡𝚤^ + 3𝑡sem ^ m, then the
m
e48. acceleration of the particle is (in 𝑚𝑠 ) l a ^𝚥 + 3𝑘

las a g
ag A) 6
B) 3
C) 8
D) 4
E) 5

m .
49. equation 𝑥 = 3𝑡 + 7𝑡 m is .co
The force acting on the particle of 0.2 kg mass whose displacement is described by the
s e m
s em l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 11 of 17

A) 1.0 N
B ) 3.2 N
C ) 6.4 N
D ) 8.6 N
E ) 2.8 N

A bullet of 10 g mass is fired at a speed of 50 𝑚𝑠 by a gun of 2 kg mass. The recoil
50.
speed of the gun (in 𝑚𝑠 ) is
A ) 0.3
B ) 0.25
C ) 0.5
D ) 0.75
E ) 1.25

51. The work done to lift a 60 kg mass to a height of 5 𝑚 from the ground is (g = 10 𝑚𝑠 )
A) 3000 J
B ) 750 J
C ) 1250 J
D ) 6000 J
E ) 4500 J

52. Energy equivalent of mass 0.5 kg is
A ) 9 × 10 𝐽
B ) 3 × 10 𝐽
C ) 2.5 × 10 𝐽

D ) 6 × 10 𝐽
E ) 4.5 × 10 𝐽

Three particles of equal mass lie at distances of 1 𝑐𝑚 , 2 𝑐𝑚 and 3 𝑐𝑚 from the origin.
53. The distance of their centre of mass from the origin is
A) 2 𝑐𝑚
B ) 1 𝑐𝑚
C ) 2.5 𝑐𝑚
D ) 3 𝑐𝑚
E) 6 𝑐𝑚

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m .co

m .co s e m
se Correct Answer : Option A
g l a
a
54. Angular momentum of a particle will not be zero, if the
A) angle between position vector and linear momentum is 0⁰
B ) particle is at the origin
C ) angle between position vector and linear momentum is 90⁰
D ) linear momentum vanishes
E ) angle between position vector and linear momentum is 180⁰
m
m .co
.co
e m
m as
se
55. An astronaut experiences
la
weightlessness in space satellite because
ag
l
A)
ag
the gravitational force is small at that location
B ) both the astronaut and the satellite are in free fall towards earth
C ) of the small gravity in the horizontal direction
D ) of the small gravity in the vertical direction
E ) of the gravitational pull of the moon

m
.co
For smaller deformations, stress is directly proportional to the strain for any material. Then
56. the constant of proportionality is called as its
e m
A) modulus of elasticity
B ) Poisson’s ratio las
C ) compressibility ag
D ) coefficient of deformation
E ) mechanical strength

57. Which one of the following principles helps to explain the flow of blood in artery?
m
.co
A) Magnus effect
m
.co
B ) Boyle’s law
e m
e m C ) Pascal’s law
l as
las D ) Bernoulli’s principle
ag
ag E ) Archimedes’ principle

An ideal Carnot engine has an efficiency of 40%. The ratio of the temperature of the sink to
58. that of the source is
A) 0.4
B ) 0.6

m .
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C ) 0.5

e m
D ) 0.2
em l as
las ag
ag For more Question Papers, Sample Papers, Notes & Syllabus visit Page 13 of 17

E) 0.3

If Q1 and Q2 are respectively, the heat supplied and expelled by a system at a constant
59. temperature, then the work done by the system is
A) 𝑄 −𝑄
B) 𝑄 +𝑄

C)

D)

E)

60. For the oscillations of a spring with spring constant k, the false statement is
A) Stiff springs have high value of k
B ) Soft springs have small value of k
C ) The spring constant is independent of the elastic properties of the spring
D ) For smaller oscillations the spring executes simple harmonic motion
E ) The period of oscillations of the spring depends upon the value of k

If the amplitude of the wave 𝑦 = 3𝑠𝑖𝑛(3𝑥 − 5𝑡) + 𝐴𝑐𝑜𝑠(3𝑥 − 5𝑡
61. ) m is 5 m, the value of A is
A) 3m
B) 2m
C) 1m
D) 5m
E) 4m

62. In dielectrics, polarization is the dipole moment per unit
A) area
B ) lectric field
C ) volume
D ) length
E ) charge

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m
m .co

m .co The energy density of the electric field 2 𝑉𝑚 s e m
in a capacitor C is ( ε ∘ is the permittivity
se 63.
of free space)
g l a
A) 3ε∘ a
∘
B)

C) 4 ε∘
∘
D)

2ε∘
E)
m
m .co
.co
s e m
s emhas a tolerance of 20%. As per the colour codes of resistors, the last
g l a
64. band in thatlaresistor is
A carbon resistor
g a
A ) silver a
B) absent
C ) red
D ) gold
E ) blue

o m
c
When a current of 2 A flows through a wire for.2.5 s, the amount of heat liberated is 20
65. J.The resistance of the wire is
s em
A) 4Ω
g la
B) 3Ω a
C) 1Ω
D) 2Ω
E) 5Ω

The magnetic moment of an electron revolving in an orbit of 0.5 m radius with a velocity m
66.
c o m
of 8 × 10 𝑚𝑠 𝑖𝑠(in 𝐴𝑚 )
m.co
A .) 3.2 × 10 s e
e m l a
l as B ) 0.4 × 10 ag
ag C ) 6.4 × 10
D) 1.6 × 10
E ) 0.8 × 10

If an electron moves with a velocity v in a magnetic field B, the magnetic force on the
mangle between v and B is
67. electron is maximum when the .
.co s e m
em
30⁰
A)

s l a
g la ag
a For more Question Papers, Sample Papers, Notes & Syllabus visit Page 15 of 17

B) 180⁰
C ) 60⁰
D ) 90⁰
E ) 0⁰

The flux linked with a coil at any instant is given by ϕ = 5𝑡 − 25𝑡 − 150 (in SI unit).
68. The emf induced in the coil at 𝑡 = 2𝑠 is
A) +5 V
B ) +3 V
C ) -1 V
D ) -5 V
E ) -3 V

If the frequency of an electromagnetic wave is 2 MHz, then the time period of oscillation of
69. the accelerated charge is
A) 2.5 × 10 𝑠
B ) 1 × 10 𝑠
C ) 5 × 10 𝑠
D ) 6 × 10 𝑠
E ) 2 × 10 𝑠

70. The eye defect astigmatism can be corrected by using a
A) convex lens
B ) spherical lens
C ) plano-convex lens
D ) concave lens
E ) cylindrical lens

71. The intensity of a polarized light can be controlled by a second polarizer from
A) 100% to 0%
B ) 50% to 0%
C ) 25% to 0%
D ) 10% to 0%
E ) 75% to 0%

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m
m .co

m .co If a particle is moving with a momentum of 2 × 10 h 𝑘𝑔𝑚𝑠 s e
then the de Broglie
m
se
72.
wavelength associated with it (in angstrom) is (where h is Planck’s constant)
g l a
A ) 1.5 a
B ) 2.5
C ) 1.0
D ) 0.5
E ) 0.75

m
m
co of the electron revolving in 2
73. The angular momentum orbit is
m .co
em. l as e
A)

l as ag
B)
ag
C)

D)

E)

m
m .co
s e
74. In the nuclear process, 𝑁𝑎 →
g la
𝑁𝑒 + 𝑒 + 𝑋 , then 𝑋 is
A) neutrino a
B ) anti-neutrino
C ) electron
D ) positron
E ) neutron

m
m
In a semiconductor crystal, the total number of electrons in the outer shell is 4N. At .co
m .co
75. absolute zero, the number of energy states of valence and conduction band are
s e m
s e respectively
g l a
g la A ) 0 and 4N
a
a B ) 4N and 4N
C ) 4N and 0
D ) 8N and 0
E ) 0 and 8N

m .
.co s e m
s em l a
g la ag
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