Question

A fisherman sees 7 wave crests

go by in 10.0 s. The crests are
2.43 m apart. Find the velocity
of the wave.
(Unit = m/s)

Answer 1

Velocity of the wave is 1.7 m/s

Step-by-step explanation:

As we know that the frequency of the wave is defined as the number of waves crossing a fixed point per second

So here we will have

`f = (N)/(t)`

`f = (7)/(10) = 0.7 Hz`

Also we know that the distance between two consecutive crest or two consecutive trough is known as wavelength

So here the wavelength of the wave is given as

`\lambda = 2.43 m`

now we have

`v = \lambda * f`

`v = (2.43 * 0.7)`

`v = 1.7 m/s`