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What will be the effect on the loudness of sound if the amptitude is doubled and halved?

What will be the effect on the loudness of sound if the amptitude is doubled and halved?
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What will be the effect on the loudness of sound if the amptitude is doubled and halved?

User Shannon Chou
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remember that
loudness is directly proportional to the square of amplitude...
so when amplitude is doubled ,,loudness increases four times..
when it is halved ,,,loudness is halved,,,
User Sanluck
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