Question

Calculate the frequency of a sound wave if it's time period is 0.05 second

Answer 1

Answer:

Explanation:

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

With the increase in the time period, the frequency of the wave decreases.  

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

Answer 2

Answer:

time period of a pendulum is given by the formula

f ＝1/t

so 1/0.05

＝20Hz