Official PYQ · 1999Set 1 · Q1.20Analog CommunicationsMCQ1 mark

GATE EC 1999 Set 1 Q1.20 — Analog Communications

A modulated signal is given by,
$s(t)=m_{1}(t) \cos \left(2 \pi f_{c} t\right)+m_{2}(t) \sin \left(2 \pi f_{c} t\right)$
where the baseband signal $m_{1}(t)$ and $m_{2}(t)$ have bandwidths of $10 \; \mathrm{kHz}$ and $15 \; \mathrm{kHz}$ , respectively. The bandwidth of the modulated signal, in $\mathrm{kHz}$ , is

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Published 10 Oct 2026

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