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Vibrations of period 0.25 s propagate al...

Vibrations of period `0.25 s` propagate along a straight line at a velocity of `48 cm//s`. One second after the the emergence of vibrations at the intial point, displacement of the point, `47 cm` from it is found to be `3 cm`. [Assume that at intial point particle is in its mean position at `t=0` and moving upwards]. Then,

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