Physics MCQ

PHYSICS   MCQ 

■Multiple choice questions and answers ■

 1.What is the value of escape velocity for earth?

[A] 9.8 km s-2

[B] 1.6 km s-2

[C] 11.2 km s-2

[D] 7.92 km s-2

2.What is the orbital velocity of geo stationary satellite?

[A] 4.15 km/s

[B] 2.78 km/s

[C] 3.08 km/s

[D] 6.66 km/s

3.Which of the following factors do not affect the value of modulus of elasticity of a body?

[A] Nature of material

[B] Temperature of the body

[C] Length and volume and of the body

[D] None of the above

4.Which of the following has no effect on the pressure beneath the surface of a liquid?

[A] Area of the liquid surface

[B] Density of the liquid

[C] Strength of the gravitational field

[D] Depth of the liquid

5.What is the unit of Specific gravity?

[A] kg m-3

[B] kg m-2

[C] kg m-1

[D] No units

Also read :  PHYSICS MCQ https://www.knowlege.in/2025/03/physics-mcq.html

6.What is the definition of a second’s pendulum?

[A] A pendulum that completes one full swing in a second

[B] A pendulum that swings twice in a second

[C] A pendulum that has a length of one second

[D] A pendulum that was invented by Secondus

7.What is the S.I unit of the propagation constant?

[A] radian metre

[B] radian per metre

[C] radian per second

[D] radian per centimetre

8.What is the wavelength range of Radio waves?

[A] between 400 nm and 800 nm

[B] between 1 nm and 10-3 nm

[C] more than 0.1 m

[D] None of the above

Also read : Math MCQ https://www.knowlege.in/2025/03/maths-mcq.html

9.In which of the following cases Doppler effect is not seen?

[A] When the velocity of source and listener is equal to or greater than the sound velocity

[B] When source and listener moves in opposite direction

[C] When the velocity of source and listener is less than the sound velocity

[D] None of the above

10.Which of these parts of the ear responds to sound waves like a microphone’s diaphragm?

[A] eardrum

[B] lobe

[C] fluid in the inner ear

[D] pinna