Question

A sound wave with a wavelength of 2.5 m travels 660 m in 2 s. Calculate the frequency of the wave. (To calculate the speed of sound, remember: speed = distance/time.)

Answer 1

Answer:

$f = 132\,hz$

Explanation:

The speed of the sound wave is:

$v = \frac{660\,m }{2\,s}$

$v = 330\,\frac{m}{s}$

The frequency is:

$f = \frac{v}{\lambda}$

$f = \frac{330\,\frac{m}{s} }{2.5\,m}$

$f = 132\,hz$