About this document
Phase and Group Velocity in Media by Kevi Kevin is a document available to read on EtoBox.
The document discusses phase velocity, group velocity, and their relationship in dispersive and non-dispersive media. It defines phase velocity as the velocity of planes of constant phase in a harmonic wave, and group velocity as the velocity at which the maximum amplitude of a wave group travels. For a dispersive medium where phase velocity depends on frequency, group velocity is equal to phase velocity minus the change in phase velocity with respect to wavelength, multiplied by wavelength over 2π. For a n
- Author
- Kevi Kevin
- Language
- EN