Question

A sound wave is moving with a frequency of 700 Hz. What is the period of this sound wave?

1/700 Hz







70 s







700 s







1/700 s

Answer 1

Remeber that frequency is the inverse of period length so need to get the reciprocal.

Answer 2

Time period of the wave is
`T=((1)/(700))\ s`

Step-by-step explanation:

It is given that,

The frequency of a sound wave, f = 700 Hz

We need to find the period of this sound wave. We know that the relation between frequency and time period is inverse such that:

`T=(1)/(f)`

`T=(1)/(700\ Hz)`

`T=((1)/(700))\ s`

So, the correct option is (d).