[MCQ]Physics MCQs For UPSC(NDA/NA) Exam, SET 6||DEB STUDY

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

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UPSC NDA/NA PHYSICS MCQ Q.1

The lines of force of uniform magnetic field

(a)Must be convergent
(b)Must be divergent
(c)Must be parallel to each other
(d)Intersect



Ans.(c)

UPSC NDA/NA PHYSICS MCQ Q. 2

A jet engine works on the principle of conservation of

 ‎(a)Linear momentum
(b)Angular momentum
(c)Energy
(d)Mass


Ans.(a)

UPSC NDA/NA PHYSICS MCQ Q.3

A liquid rises to a certain length in a capillary tube. The tube is inclined to an angle of 45 degree. The length of the liquid column will

 ‎(a)Increase
(b)Decrease
(c)Remain unchanged
(d)First decrease and then increase


Ans.(a)

UPSC NDA/NA PHYSICS MCQ Q.4

Mass of B is four times that of A. B moves with a velocity half that of A. then, B has

‎(a)Kinetic energy equal to that of A
(b)Half the kinetic energy of A
(c)Twice the kinetic energy of A
(d)Kinetic energy one-fourth of A


Ans.(a)

UPSC NDA/NA PHYSICS MCQ Q.5

In a pressure cooker, cooking is faster because the increase in vapour pressure

‎(a)Increases the specific heat
(b)Decreases the specific heat
(c)Decreases the boiling point 
(d)Increases the boiling point


Ans.(d)

UPSC NDA/NA PHYSICS MCQ Q.6

Magnets attract magnetic substances as iron, nickel, cobalt, etc. they can also repel

(a)Paramagnetic substances
(b)Ferromagnetic substances
(c)Diamagnetic substances
(d)Non-magnetic substances


Ans.(c)

UPSC NDA/NA PHYSICS MCQ Q.7

When a ray of light is going from one medium to another its

(a)Wavelength remains same
(b)Frequency remains same
(c)Frequency increases
(d)Wavelength increases


 Ans.(b)

UPSC NDA/NA PHYSICS MCQ Q.8

If the electrical resistance of a typical substances suddenly drops to zero, then the substance is called

(a)Super conductor
(b)Semiconductor
(c)Conductor
(d)Insulator


Ans.(a)

UPSC NDA/NA PHYSICS MCQ Q.9

A spherical air bubble is embedded in a piece of glass. For a ray of light passing through the bubble, it behaves like a

 (a)Converging lens
(b)Diverging lens
(c)Plano-converging lens
(d)Plano-diverging lens


Ans.(b)

UPSC NDA/NA PHYSICS MCQ Q.10

“The stars seem to be higher on the sky than they actually are”. This can be explained by

(a)Atmospheric refraction
(c)Dispersion of light
(d)Total internal reflection
(d)Diffraction of light


Ans.(a)



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