Question

What is the frequency of a wave if 3 crests pass in 6 seconds?

Answer 1

A. 0.5 hz because frequency os the amount of waves that pass per one second.

Answer 2

Answer:

b. 2Hz

Explanation:

Frequency is defined as the number of wavelengths passing a particular point per second.

If 3 crests pass a point in two seconds, then we know that 6 crests pass the point per second.

Therefore 2 wavelengths pass the point per second, and hence the frequency of the wave is 2Hz.