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  1. A pure tone at 1000 Hz has a dB level of 50 dB. If two such tones exist simultaneously the dB level is about

    2. A.
    50 dB
    B.
    53 dB
    C.
    100 dB
    D.
    200 dB

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    Answer : Option B

    Explanation :

    No answer description available for this question.

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