Question

The source of a wave is moving at 40 vibrations per second. What is the frequency of the wave it produces? a-1HzB- 40 HzC-20HzD- 80hz

Answer 1

B. 40 Hz

Explanation:

We have that the number of vibrations per second equals frequency since it is the number of repetitions per unit of time.

Since it is 40 vibrations per second, the frequency will be 40 Hz in this case.

The correct answer is B. 40 Hz