Official PYQ · 2023Set 1 · Q10Plane Waves and PropertiesMCQ1 mark

GATE EC 2023 Set 1 Q10 — Plane Waves and Properties

Consider a narrow band signal, propagating in a lossless dielectric medium $\left(\varepsilon_{r}=4, \mu_{r}=1\right)$ , with phase velocity $v_{p}$ and group velocity $v_{g}$ . Which of the following statement is true? ( $c$ is the velocity of light in vacuum.)

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Answer: D

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Published 10 Oct 2026

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