Unit for measuring the loudness of sound is _________________.

Decibel

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Pascal

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Newton

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Newton-metre

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Solution

The correct option is A Decibel
Unit for measuring the loudness of sound is decibel.
The intensity or loudness of a sound depends upon the extent to which the sounding body vibrates, i.e., the amplitude of vibration. A sound is louder as the amplitude of vibration is greater, and the intensity decreases as the distance from the source increases. Loudness is measured in units called decibels.

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