Question

Find the wavelength λ of the 80.0-khz wave emitted by the bat. express your answer in millimeters.

Answer 1

The wavelength is measured in meters and Hertz is 1/seconds so, we have the equation:

`Wavelength =(c)/(f)`

and c is the speed of light, and f is the frequency. Therefore,
`c=3x10^8m/s` and the frequncy is
`f=80x10^3hz`

by plugging in those values we get:

`Wavelength=(3x10^8m/s)/(80x10^3hz) =3750m`

And so λ = 3750 meters

and 3750 meters is 3750000 millimeters