Question

if the amplitude of vibration is Increasd by three times, the loudness will increase by​

Answer 1

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Loudness is directly proportional to the square of amplitude. Thus, if the amplitude is increased by three times, the loudness Will increase nine times.

Loudness depends on the square of the amplitude.

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Answer 2

Loudness is proportional to the square of the amplitude. Thus, if the amplitude is increased by three times, the loudness increases by nine times.