Respuesta :

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

Answer:

Time period of the wave is [tex]T=(\dfrac{1}{700})\ s[/tex]

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:

[tex]T=\dfrac{1}{f}[/tex]

[tex]T=\dfrac{1}{700\ Hz}[/tex]

[tex]T=(\dfrac{1}{700})\ s[/tex]

So, the correct option is (d).