Question

the frequency of a wave whose time period is 0.05s is?

Answer 1

Frequency = 1 / Time period
= 1 / 0.05 s
= 100 / (5 s)
= 20 Hz

Frequency of the wave is 20 Hz

Answer 2

The wave frequency is 20 Hz.

Given:  

Period of time = 0.05 sec

To find:

Frequency = ?

Solution:

The frequency is the reciprocal of time period. It is cycles per unit time. The time is required to complete one cycle. The unit of frequency is second inverse.

$\text { Frequency } =\frac{1}{\text { Time period }}$

$\text { Frequency } =\frac{1}{0.05} \ Hz$

$\text { Frequency }=\frac{100}{5} \ Hz$

$\therefore \text { Frequency } = 20 \ Hz$