Each vertical line on the graph is 1 millisecond (0.001 s) of time. What is the period and frequency of the sound waves?

Explanation:

Given that,

Each vertical line on the graph is 1 millisecond (0.001 s) of time.

We need to find the period and the frequency of the sound wave. The period of a wave is equal to the each vertical line on graph i.e. 0.001 s.

Let f be the frequency of the sound wave. So,

f = 1/T

i.e.

So, the period and the frequency of the sound waves is 1 milliseond and 1000 Hz respectively.