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Q.

A metal rod of 1 m length, is dropped exact vertically on to a hard metal floor. With an oscilloscope, it is determined that the impact produces a longitudinal wave of 1.2 kHz frequency. The speed of sound in the metal rod is :

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Detailed Solution

V=fλ λ2 =1mV=1.2 × 103 × 2 = 2400 m/s

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