Question

A man is standing on the shore of a beach, up to his knees in water. Every second two waves hit him. What is the frequency of the wave?

Answer 1

f = 2 Hz

Step-by-step explanation:

The frequency of a wave is defined as the no. of waves passing per unit of time. Therefore, the frequency of a wave can be calculated by the following formula:

`f = (n)/(t)`

where,

f = frequency of the wave = ?

t = time passed = 1 s

n = no. of waves passing in time t = 2

Therefore,

`f = (2)/(1\ s)`

f = 2 Hz