Concepts Of Physics MCQ Edition [Volume 1]PhysicsWave Motion and Waves on a String

The velocity of sound in air is 332 m s ⁻¹ . Its velocity in a vacuum will be

Options

A< 332 m s ⁻¹
B= 332 m s ⁻¹
C> 332 m s ⁻¹
Dmeaningless

Correct answer

D. meaningless

Step-by-step solution

Sound is a mechanical wave which requires a material medium for its propagation. Since a vacuum contains no particles to transmit the wave, sound cannot travel through it. Therefore, the concept of the velocity of sound in a vacuum is meaningless.

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