Official PYQ · 1997Set 1 · Q3.8Analog CommunicationsMCQ1 mark

GATE EC 1997 Set 1 Q3.8 — Analog Communications

An amplifier A has $6 \; d \mathrm{B}$ gain and $50 \; \Omega$ input and output impedances. The noise figure of this amplifier as shown in the figure is $(a)$ is $3 \; d \mathrm{B}$ . A cascade of two such amplifiers as in the figure is will have a noise figure of

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Answer: A

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Published 10 Oct 2026

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