Question

Amy counts the wave crests traveling down a stretched string.Five wave crests pass Amy in two seconds.What is the frequency of the wave?

Answer 1

The frequency of a wave is a measure of the number of waves that passes through a point per unit of time. It has SI units of s^-1. It is also equivalent to Hertz (Hz). We calculate the frequency of the wave described as follows:

Frequency = 5 waves / 2 s = 2.5 / s or 2.5 Hz