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8 February, 11:22

A sound wave of 70 cm travels 840 m in 2.5 sec. What is the velocity and frequency of sound?

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  1. 8 February, 13:37
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    - - Speed = (distance) / (time to cover the distance) = 840/2.5 = 336 m/s

    - - Frequency = (speed) / (wavelength) = 336/0.70 = 480 Hz.
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