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11 December, 22:39

As the distance of a sound wave from its source quadruples, how is the intensity changed?

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  1. 11 December, 22:52
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    Through the 1/r law, it was concluded that for the sound intensity or pressure is directly proportional to distance or radius. That is,

    p = k/r

    where k is the proportionality constant. If the distance of a sound wave is quadrupled then, the intensity of the sound is decreased to 1/4 of its original value.
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