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  1. The magnitude plot of a composite signal x(t) = e2jt + e3jt is

    2. A.
    Half wave rectified sinusoid
    B.
    Full wave rectified sinusoid
    C.
    Exponentially increasing sinusoid
    D.
    Exponentially decreasing sinusoid

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    Answer : Option B

    Explanation :

    x(t) = ej2 . 5t (e-j0.5t + e-j0 . 5t)

    x(t) = 2ej2.5t cos (0.5)t

    The magnitude of x(t) is

    |x(t)| = 2|cos (0.5)t|.

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