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Discussion :: Environmental Science

  1. The unit of measurement of intensity of sound is in _________

  2. A.

     Decibels

    B.

     Lux

    C.

     Parsec

    D.

     Candela

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    Answer : Option A

    Explanation :

    Although the units for sound intensity are technically watts per meter squared, it is much more common for it to be referred to as decibels, dB. A decibel is a ratio of the observed amplitude, or intensity level to a reference, which is 0 dB.


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