Question

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

Answer 1

Sound Speed (v): 339 m/s
Sound Wavelength ($λ$): 1.5 cm = 0.015 m

The formula relating speed, wavelength, and frequency is $v=λ×f.$
$f=\frac{v}{λ}​=\frac{339}{0.015}$​=22600Hz
The frequency of audible sound for humans typically ranges from 20 Hz to 20,000 Hz. Given the sound frequency of 22,600 Hz, it falls outside the audible range, indicating that it is not audible to human ears.