Official PYQ · 2026Set 1 · Q5Continuous-time SignalsMCQ1 mark

GATE EC 2026 Set 1 Q5 — Continuous-time Signals

Two analog signals $x_{1}(t)$ and $x_{2}(t)(t$ in second $)$ , are sampled at a rate $F_{s}=40 \mathrm{~Hz}$ , where

$x_{1}(t)=\cos (20 \pi t), t \geq 0, \text{ and } x_{2}(t)=\cos (100 \pi t), t \geq 0$
The first ten samples (starting from $t=0$ ) are considered for the analysis.

Which of the following statements is TRUE?

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Answer: D

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Published 10 Oct 2026

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