Decibel is the unit used to measure which characteristic of sound?

pitch

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loudness

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quality

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frequency

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Solution

The correct option is B loudness
Answer is B.
Loudness of sound is measured in decibels (dB). This is actually a measure of intensity, which relates to how much energy the pressure wave has. Decibels are a relative measurement. They relate the intensity of a pressure wave to a normal or standard pressure.

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