If 20 waves pass a fixed point in 5 seconds, the frequency of the wave isWhat???

Frequency, f = 4 Hz

Explanation:

We have,

Number of waves passing a fixed point are 20

Time, t = 5 seconds

It is required to find the frequency of the wave. Frequency of a wave is defined as the number of waves passing through a point per second. Its mathematical form is given by :

So, the frequency of the wave is 4 Hz.