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Discussion :: UPSC Civil Service Exam Questions

  1. Which one of the following is the correct sound intensity expression with usual notations ?

  2. A.
    dB = 10 log10 (I/I0)2
    B.
    dB = 10 log10 (I/I0)
    C.
    dB = 10 log10 (I - I0)2
    D.
    dB = 10 log10 (I - I0)

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    Answer : Option B

    Explanation :

    No answer description available for this question. Let us discuss.


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