phase velocity in a sentence

Examples

1. is the speed of light ( i . e . phase velocity ) in a medium with Laplace operator.
2. A common misconception occurs between phase velocity and group velocity ( analogous to centres of mass and gravity ).
3. The main difference between these two groups is the behaviour of the phase velocity when the frequency approaches zero.
4. Such a material allows an electromagnetic wave to convey energy ( have a group velocity ) against its phase velocity.
5. The first superprism also modified group velocity rather than phase velocity in order to achieve the " superprism phenomena ".
6. Really, the best way to think of group and phase velocity is that the shape of the wavelet changes.
7. At its nascent frequency, each of these modes has an infinite phase velocity and a group velocity of zero.
8. where V group is the group velocity, V phase is the phase velocity, and ? is the wavelength.
9. The ratio between and the phase velocity is called the refractive index or index of refraction of the material ( ).
10. :The " phase velocity " is the velocity at which a wave of a single frequency will propagate.