Skip to main content

Formula Phase Velocity of a Wave Wavelength    Period

Formula
Formula: Phase Velocity of a Wave

Phase velocity

Unit
Phase velocity indicates the velocity of points of the same phase. For example, if you focus on a wave crest, then the phase velocity is the velocity of that wave crest.

The phase velocity of electromagnetic waves is the speed of light \(c\).

Wavelength

Unit
For example, wavelength is the distance between two wave crests.

Period

Unit
Period is the time a wave crest takes to travel the distance \(2\pi\).