what is decibel? ? ? ? ?
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Explanation:
Decibel is a physical measure used to measure sound.
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The decibel (abbreviated dB) is the unit used to measure the intensity of a sound.The decibel is a unit of measurement used to express the ratio of one value of a power or field quantity to another, on a logarithmic scale, the logarithmic quantity being called the power level or field level, respectively. It can be used to express a change in value or an absolute value.
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