Question

Group velocity of a wave is equal to
O A. Vphase
O B. Vparticle
O C. velocity of light
O D. none of these​

Answer 1

Answer:

Vparticle.

Option B

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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.

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