Question

The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find the wavelength for 20 Hz when the speed of sound in air is 359 m/s. Answer in units of m.

Answer 1

Answer:

Wavelength of sound wave corresponding to 20 Hz frequency will be 17.95 m

Explanation:

We have given that range of human hearing extends from 20 Hz and 20000 Hz

Velocity of sound wave is given 359 m /sec

We have to find the wavelength of the sound wave corresponding to 20 Hz

We know that velocity of sound wave is given by $v=\lambda f$, here v is velocity $\lambda$ is wavelength and f is frequency

So $359=\lambda \times 20$

$\lambda =17.95m$

So wavelength of the sound wave corresponding to 20 Hz frequency will be 17.95 m