Question

A source of frequency of 500 Hz emits waves of wavelength 0.4 m . The velocity of sound is

Answer 1

Velocity = Frequency * Wavelength
= 500 Hertz * 0.4 metres = 200 metres/second.

Answer 2

Velocity of sound, v = 200 m/s

Explanation:

It is given that,

Frequency of the source, f = 500 Hz

Wavelength of the wave, $\lambda=0.4\ m$

Let v is the speed of sound. We know that the relation between frequency, wavelength and speed is given by :

$v=f\times \lambda$

$v=500\times 0.4$

v = 200 m/s

So, the velocity of sound is 200 m/s. Hence, this is the required solution.

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