The number of waves passing the observer per second is:
A)the wavelength in angstroms.
B)the amplitude in nm.
C)the frequency in Hertz.
D)the period in seconds.
E)the energy in milliwatts.

Question

Quizplus · Accepted Answer

The frequency of a wave represents the number of waves passing a point per second. It is measured in Hertz. The frequency of a wave refers to the number of cycles or waves passing a fixed point in a given time, usually expressed in Hertz (Hz), which is cycles per second. Therefore, the number of waves passing the observer per second is equal to the frequency in Hertz.

The Number of Waves Passing the Observer Per Second Is