Question

What is the frequency of a vibrating body whose time-period is 0.05 second ?

Answer 1

Frequency=1/Time period

Given, time period=0.05 s

Therefore, Frequency=1/0.05

=20Hz

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Answer 2

Frequency = 20 Hz

Explanation:

Frequency is inversely proportional to time period. Time period is the time taken to complete a cycle of any function while frequency is the number of times a cycle is completed each second.

So given that the time period is 0.05 seconds, frequency of the vibration will be 1 / time period.

f = 1 / T = 1 / 0.05 = 20

Frequency = 20 Hertz.