# Question #70ea8

##### 1 Answer
Nov 24, 2016

We know that the frequency $\left(n\right)$ of a wave is defined as the number of waves formed per sec and its time period $\left(T\right)$ is the time taken to form a wave.

So $T = \frac{1}{n}$

In the given problem $n = 3 H z$
So time period $T = \frac{1}{n} = \frac{1}{3} s$
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