Question

The speed of a sound wave in seawater is approximately 1500m/s. If the wave is transmitted at 10ms-1, what is its wavelength? Answer in cm

Answer 1

The wave travels at the speed of sound in water:
`v=1500 m/s`.

The frequency of the wave is

`10 ms^(-1) = 10000 s^(-1) = 10000 Hz`

so we can find its wavelength
`\lambda` by using the basic relationship between frequency, wavelength and speed of the wave:

`\lambda= (v)/(f)= (1500 m/s)/(10000 Hz)=0.150 m = 15 cm`