GATE 2020 IN Q.13: official answer

GATE 2020 · INQ.13 · 1 mark · MCQ

Consider the Signal $x [n] = sin (2 π n) u [n]$ , where $u [n] = 1$ for $n = 0, 1, 2, 3, \dots$ and $u [n] = 0$ otherwise.

The period of this signal $x [n]$ is ____

(A)
4
(B)
3
(C)
2
(D)
1

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GATE 2020 IN question 13

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Official answer

Official answer: DSource: Official answer key, GATE 2020 IN (IIT Delhi)

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