Question

A sound wave of wavelength $8\text{m}$ travels at a speed of $330\text{m/s}$. Find the type of sound wave.
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Answer 1

Given,
Speed of sound, $V=330\text{m/s}$
Wavelength, $\lambda =8\text{m}$
Frequency of given sound wave,
$f=\frac{V}{\lambda }=\frac{330}{8}=41.25\text{kHz}$
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The frequency of the given sound wave falls in the ultrasonic region $(>20\text{Hz})$.
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