Question

Ocean waves travel in to the beach at an average velocity of 2.5 m s . If these waves come in 4 seconds apart, what is the average distance between the wave peaks, considering the formula V= d t ?

Answer 1

`2.5 * 4`

Answer 2

Answer : Average distance is 10 m.

Explanation :

It is given that,

Average velocity of the wave,
`v=2.5\ m/s`

Time,
`T=4\ s`

So, frequency
`\\u=(1)/(T)=(1)/(4)\ Hz`

We know that the average distance between the wave peaks is called as wavelength.

The relation between the wavelength, frequency and the time period is :

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

`\lambda=(2.5\ m/s)/((1)/(4\ s))`

`\lambda=10\ m`

So, the average distance between the wave peaks is 10 m.