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Speed of Sound

A sound sourc...

Question

A sound source sends waves of $100 H z$ . It produces waves of wavelength $3 m$ . The velocity of sound wave is:

A

100 m / s

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B

300 m / s

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C

10000 m / s

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D

30000 m / s

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Solution

The correct option is A $300 m / s$
Given,

$f = 100 H z$

$λ = 3 m$

The velocity of sound wave is given by

$v = f λ$

$v = 100 \times 3 = 300 m / s$

The correct option is B.

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