Question

Calculate the wavelength of a sound wave whose frequency is $220Hz$ and speed is $440m/s$ .

Answer 1

The wavelength $\lambda ,$ speed $v$ and frequency $f$ are related as:

$\lambda \left(inm\right)=\frac{v\left(inm/s\right)}{f\left(inHz\right)}$
Given:

$v=440m/s$

$f=220Hz$

$\lambda =\frac{v}{f}=\frac{440}{220}=2m$