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Discussion :: Communication Systems

  1. A directional microphone gives an output of 0.5 mV whereas an omnidirectional one gives an output of 0.5 μV in the same position for the same sound pressure. The directivity of the directional microphone is

    2. A.
    120 dB
    B.
    90 dB
    C.
    60 dB
    D.
    30 dB

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    Answer : Option C

    Explanation :

    Directivity =

    = 60 dB.

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