Question

which of the following describes the number of wave cycles per second of an electromagnetic wave?
amplitude
velocity
frequency
wavelength

Explanation:

Frequency is defined as the number of wave - cycles per second of a wave, including electromagnetic waves. Amplitude refers to the maximum displacement of the wave. Velocity is the speed of the wave's propagation. Wavelength is the distance between two consecutive points in phase on a wave.

Answer:

C. Frequency