Answer:
Frequency, f = 0.6 Hz
Step-by-step explanation:
We have,
Number of waves passing through a point are 3
Time for which the waves are passing is 5 seconds
It is required to find the frequency of a wave. The frequency of a wave is defined as the no of waves per unit time. So,
![f=(n)/(t)\\\\f=(3)/(5)\\\\f=0.6\ Hz](https://img.qammunity.org/2021/formulas/chemistry/high-school/ku62ltct2fe8wgrintxhhmlyolojrgyw9e.png)
So, the frequency of a wave is 0.6 Hz.