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Discussion :: Measurements and Instrumentation

  1. If reference sound pressure P0 is 2 x 10-5 N/m2, a sound pressure of 90 dB is equal to

    2. A.
    0.632 N/m2
    B.
    0.707 N/m2
    C.
    0.835 N/m2
    D.
    0.925 N/m2

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    Answer : Option A

    Explanation :

    .

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