how does loudness of sound depends on amplitude?if the amplitude is doubled, by how much does loudness increase?
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how does loudness of sound depends on amplitude?if the amplitude is doubled, by how much does loudness increase?
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Answer:
It is directly proportional to the square of the amplitude of vibration. If the amplitude of the sound wave becomes double, then the loudness of the sound will be quadrupled. It is expressed in decibel (dB).