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Frequency

53.a wave pac...

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53.a wave packet center frequency w is propagating in a dispersive mediumwith phase velocity of 1.5x10power m/s8 . when the frequency w is increased by 2% the phase velocity is found to decreased by 3% . what is the group velocity of wave pocket? a. 0.25x109m/s b 0.6x108m/s c. 1.0x108m/s d. o.75x108m/s

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