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  1. An angle modulated signal is given by s(t) = cos 2p (2 x 106t + 30 sin 150t + 40 cos 150t). The maximum frequency and phase deviations of s(t) are

    2. A.
    10.5 kHz, 140p rad
    B.
    6 kHz and 80p rad
    C.
    10.5 kHz, 100p rad
    D.
    7.5 kHz, 100p rad

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    Answer : Option D

    Explanation :

    s(t) = cos 2p(2 x 10+16t + 30 sin 150t + 40 cos 150t)

    Phase deviation = 100 p

    Frequency deviation = 7.5 kHz.

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