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  1. An LTI system having transfer function and input x(t) = sin (t + 1) is in steady state. The output is sampled at a rate ωs rad/s to obtain the final output {y(k)}. Which of the following is true?

    2. A.
    y(.) is zero for all sampling frequencies ωs
    B.
    y(.) is nonzero for all sampling frequencies ωs
    C.
    y(.) is nonzero for ωs > 2, but zero for ωs > 2
    D.
    y(.) is zero for ωs > 2 but nonzero for ωs > 2

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    Answer : Option A

    Explanation :

    ω = 1, Thus output is zero for all sampling frequencies.

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