Question

If a wave has a period of 0.077 sec, it has a frequency of

01/13 Hz.
3.6 Hz.
169 Hz.
13 Hz.

Answer 1

Answer: 13 Hz

Step-by-step explanation:

The frequency
`f` of a wave is expressed as:

`f=(1)/(T)`

Where
`T` is the period of the wave

If we are told the period is 0.077 s, then its frequency is:

`f=(1)/(0.077 s)`

`f=12.98 Hz \approx 13 Hz`