the phase velocity is found to decrease by 3%. What is the group velocity of the wave packet?

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A wave packet with center frequency ω is propagating in dispersive medium with phase velocity of 1.5×10^3m/s. When the frequency w is increased by 2%, the phase velocity is found to decrease by 3%. What is the group velocity of the wave packet?
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Oct
A wave packet with center frequency ω is propagating in dispersive medium with phase velocity of 1.5×10^3m/s. When the frequency w is increased by 2%, the phase velocity is found to decrease by 3%. What is the group velocity of the wave packet? A wave packet with center frequency ω is propagating in dispersive medium [...]
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Tags: A wave packet with center frequency ω is propagating in dispersive medium with phase velocity of 1.5×10^3m/s. When the frequency w is increased by 2% , the phase velocity is found to decrease by 3%. What is the group velocity of the wave packet? ,