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

Given,

Speed of sound, v = 339 m s^-1

Frequency, f =?

Wavelength, λ = 1.5 cm

=

= 0.015 m

We know that,

v = f × λ

339 = f × 0.015

f =

= 22600 Hz

As the frequency is 22600 Hz, that is beyond the upper limit of hearing. Hence, it will not be audible. It is actually ultrasonic sound.