Answer the following question given this paragraph: 

Wave speed is related to both wavelength and wave frequency. Wavelength is the distance between two corresponding points on adjacent waves. Wave frequency is the number of waves that pass a fixed point in a given amount of time. This equation shows how the three factors are related:.


Q: In physics, the number of waves that pass a fixed point in a given amount time is referred to as what ?

 Choices:

- combination frequency

- wave count

- creation frequency

- wave frequency

A:
wave frequency
