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Loudness and Pitch

How does loud...

Question

How does loudness depend on the amplitude of vibrations ?

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Solution

Loudness of the sound produced by a vibrating object depends on the amplitude of vibration. If we strike a drum softly, it produces a soft sound.. Loudness is proportional to the square of the amplitude. Thus, if the amplitude is increased by three times, the loudness also increases by nine times.

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