[MCQ]Physics MCQs For UPSC(NDA/NA) Exam, SET 12||DEB STUDY

PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM

UPSC NDA/NA PHYSICS MCQ  Q.1

A bar magnet is placed inside a uniform magnetic field. What does it experience?

(a) a force
(b) a torque
(c) both a force and a torque
(d) neither a force nor a torque



Ans.(b)

UPSC NDA/NA PHYSICS MCQ  Q.2

A far-sighted person has a near point at 100 cm. What must be the power of the correcting lens?

(a) -0.8 D
(b) -3.0 D
(c) +0.8 D
(d) +3.0 D


Ans.(b)

UPSC NDA/NA PHYSICS MCQ  Q.3

Evening sun is not as hot as the mid-day Sun. What is the reason?

(a) in the evening, radiations travel slowly
(b) in the evening, the temperature of the sun decreases
(c) ozone in atmosphere absorbs more light in the evening
(d) in the evening, radiations travel larger distance through atmosphere


Ans.(d)

UPSC NDA/NA PHYSICS MCQ  Q.4

Some common mediums in which speed of sound waves is measured and mentioned below

1. Air
2. Steel
3. Copper
4. Water

What is the correct increasing order of the speed of sound

(a) 1<4<2<3
(b) 4<1<2<3
(c) 1<4<3<2
(d) 4<1<3<2


Ans.(c)

UPSC NDA/NA PHYSICS MCQ  Q.5

When water is heated from 0 degree C to 20 degree C, how does its volume change?

(a) it shall increase
(b) it shall decrease
(c) it shall first increase and then decrease
(d) it shall first decrease and then increase


Ans.(d)

UPSC NDA/NA PHYSICS MCQ  Q.6

Consider the following statements 

The fraction of a ball floating inside the liquid depends upon

1. Density of the liquid
2. Mass of the ball
3. Density of the ball

Which of the statements given above is/are correct?

(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) all of these


Ans.(c)

UPSC NDA/NA PHYSICS MCQ  Q.7

A wire has a resistance of 32 ohm. It is melted and drawn into a wire of half of its original length. What is the resistance of the new wire?

(a) 32 ohm
(b) 16 ohm
(c) 8 ohm
(d) 4 ohm


Ans.(c)

UPSC NDA/NA PHYSICS MCQ  Q.8

Consider the following statements

An external pressure p0 is applied to the surface of a liquid in a container. Then,

1. The pressure on all sidewalls increases by p0 
2. The pressure on the bottom wall increases by p0
3. The pressure at all points inside the liquid increases by p0

Which of the statements given above is/are correct?

(a) 2 and 3
(b) 1 and 2
(c) 1 and 3
(d) all of these


Ans.(b)

UPSC NDA/NA PHYSICS MCQ Q.9

Which one among the following radiations carries maximum energy?

(a) ultraviolet rays
(b) Gamma rays
(c) X-rays
(d) Infra-red rays


Ans.(b)

UPSC NDA/NA PHYSICS MCQ  Q.10

The neutron, proton, electron and alpha-particles are moving with equal kinetic energies. How can the particles be arranged in the increasing order of their velocities?

(a) alpha particle - neutron - proton - electron
(b) proton - electron - neutron - alpha particle
(c) electron - proton - neutron - alpha particle
(d) neutron - proton - electron - alpha particle


Ans.(c)




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Physics MCQs For UPSC(NDA/NA) Exam - Set 13👈
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