Question

A wave with a period of .008 seconds has the frequency of:

A. 125hz
B. 800hz
C. 12.5hz
D. 80hz

Answer 1

A. 125 Hz

Step-by-step explanation:

Frequency is the inverse of period.

f = 1 / T

Given T = 0.008 seconds:

f = 1 / (0.008 s)

f = 125 Hz

Answer 2

A wave with a period of .008 seconds has the frequency of 125 Hz.

Answer: Option A

Explanation:

The period of wave or the time period of the wave which has the given frequency of 0.008 sec, can be calculated via following steps,

Given that frequency f=0.008 sec

As we know that the frequency
`f=(1)/(T)`

The period or the time period becomes,
`T=(1)/(f)`

Thereby, substituting the value, we get,

`T=(1)/(0.008)=(1000)/(8)=125 Hz`

Therefore, the time period or the period of the wave which has the frequency to be 0.008 sec is found to be 125 Hz.