BACK TO phase velocity
phase velocity vs. group velocity
- the velocity with which a simple harmonic wave is propagated, equal to the wavelength divided by the period of vibration.
- the velocity of finite numbers of waves undergoing simple harmonic motion, equal to the phase velocity when it does not vary with the wavelengths of the waves. The group velocity of the set of waves produced in water when a stone is dropped is less than the velocity of the individual waves.