A wave of 60 vibrations per second travels 30 m in 1 s.Its frequency is
A)30 Hz.
B)60 Hz.
C)more than 60 Hz.
D)none of the above

Question

Quizplus · Accepted Answer

The frequency of a wave is the number of complete vibrations or cycles it makes in one second. In this case, the wave completes 60 vibrations in one second, so its frequency is 60 Hz. The distance that the wave travels is not relevant to its frequency. Therefore, options A, C and D are incorrect.

A Wave of 60 Vibrations Per Second Travels 30 M