Group Velocity
- A group may be made up of a number of different frequencies, wavelengths and velocities that are superposed. Such a group would disperse with time if the wave velocity of each component is different.
- where
- vg = group velocity [ms-1]
- vp = phase velocity [ms-1]
- ω = angular frequency [rads-1]
- k = wavenumber [m-1]
- λ = wavelength [m]
- vp = phase velocity [ms-1]
See also: Group Index, Phase Velocity, Wave Equation.
Subjects: Classical Mechanics