Question

Dispersion in wave propagation phase velocity and group velocity

Answer 1

Answer:

Phase and group velocity are related through Rayleigh's formula, If the derivative term is zero, group velocity equals phase velocity. In this case, there is no dispersion. Dispersion is when the distinct phase velocities of the components of the envelope cause the wave packet to "spread out" over time.

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Answer 2

Answer:

Phase and group velocity are related through Rayleigh's formula, If the derivative term is zero, group velocity equals phase velocity. In this case, there is no dispersion. Dispersion is when the distinct phase velocities of the components of the envelope cause the wave packet to "spread out" over time.