CBSE 2023 · Region 4 · Set 3 · Q2 · 1 mark
A light of frequency $\displaystyle v$ is incident on a metal surface whose work function is $\displaystyle \mathrm{W}_{0}$. The kinetic energy of emitted electron is K . If the frequency of the incident light is doubled then the kinetic energy of emitted electron will be :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
more than $\displaystyle 2$ K
Dual Nature of Radiation and MatterEinstein’s Photoelectric Equation: Energy Quantum of RadiationApplymcqmedium
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CBSE Class 12 Physics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.