Official PYQ · 2002Set 1 · Q2.20Continuous-time SignalsMSQ1 mark

GATE EC 2002 Set 1 Q2.20 — Continuous-time Signals

A signal $x(t)=100 \cos \left(24 \pi \times 10^{3}\right) t$ is ideally sampled with a sampling period of $50 \; \mu \mathrm{sec}$ and then passed through an ideal lowpass filter with cut-off frequency of $15 \; \mathrm{kHz}$ . Which of the following frequencies is/are present at the filter output?

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Answer: D

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Published 10 Oct 2026

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