Define phase velocity and group velocity?

Author: Tanmay Chakrabarty

First Published On: Monday, January 2, 2017 at 12:16 AM

Phase velocity

Phase velocity is the velocity with which a plane progressive wave front travels forward. Phase velocity is symbolized by . It has a constant phase = 

Group velocity

The group velocity () is the speed with which the point of reinforcement of the resultant wave travels. The group velocity is different from the individual wave velocity.



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