SONAR works on the principle of MCQ with Answer and Explanation

Question Report Error

SONAR works on the principle of

A. Doppler effect

B. Interference of sound

C. Reflection of sound

D. Refraction of sound

Answer: Option C

Solution (By JKExamLibrary)

Sound Navigation And Ranging uses echo (reflection).

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1 Report Error

The term 'latent heat' was introduced by

A. Kelvin

B. Black

C. Calorie

D. Joule

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Correct Answer: Option B

Explanation:
Joseph Black introduced concept of latent heat and specific heat.

This question belongs to: Science Physics

Question #2 Report Error

Which of the following is an example of a non-contact force?

A. Gravitational force

B. Tension in string

C. Muscular force

D. Frictional force

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Correct Answer: Option A

Explanation:
Gravity, electrostatic, magnetic forces act without direct contact. Friction, tension, normal require contact. Field forces are non-contact.

This question belongs to: Science Physics

Question #3 Report Error

A ball of mass 0.5 kg moving at 4 m/s strikes a wall and rebounds at same speed. Impulse imparted is

A. 2 N s

B. 8 N s

C. 4 N s

D. 0 N s

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Correct Answer: Option C

Explanation:
Δp = m(v - (-u)) = 0.5(4 - (-4)) = 0.5×8 = 4 N s.

This question belongs to: Science Physics

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