Question

The sound emitted by bats has a wavelength of 3.93mm. What is the frequency in air? The speedof sound in air is 343m/s.Answer in Hz

Answer 1

The frequency of a wave is related to its velocity and wavelength by:

`f=(v)/(\lambda)`

In this case the velocity is 343 m/s and the wavelength is 3.93 mm, then we have:

`\begin{gathered} f=(343)/(0.00393) \\ f=87277.35 \end{gathered}`

Therefore, the frequency is 87277.35 Hz