Question

What is the frequency of the sound wave if time period is 0.05 seconds​

Answer 1

A time period is the overall time that is required for the vibration to complete one cycle during a given point in time.

When the time period of a wave is 0.05 seconds its frequency = 1/the given time period, given time period = 0.05 sec thus f = 1/0.05 = 20 Hz