Question

A sound wave travels at a speed of $339m{s}^{-1}$. If its wavelength is $1.5cm$. What is the frequency of the wave? Will it be audible?

Answer 1

Velocity of sound wave $v=339$ $m{s}^{-1}$

Wavelength of the waves $\lambda =1.5$ $cm$ $=0.015$ $m$

$\therefore$ Frequency of the waves $\nu =\frac{v}{\lambda }=\frac{339}{0.015}=22.6$ kHz

Audible frequency range for human ear lies between $20$ Hz to $20$ kHz

Thus this waves is not audible.