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

Concepts Of Physics MCQ Edition [Volume 1]

Exam: Concepts Of Physics MCQ Edition [Volume 1]
Subject: Physics
Chapter: Wave Motion and Waves on a String

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

The velocity of sound in air is 332 m s^ -1 . Its velocity in a...

The velocity of sound in air is

332 \text{ m s}^{-1}

. Its velocity in a vacuum will be

Options

A $< 332 \text{ m s}^{-1}$
B $= 332 \text{ m s}^{-1}$
C $> 332 \text{ m s}^{-1}$
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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