CBSE 2024 · Region 4 · Set 1 · Q13 · 1 mark
Assertion (A) : Electrons are ejected from the surface of zinc when it is irradiated by yellow light.
Reason (R) : Energy associated with a photon of yellow light is more than the work function of zinc.
Official answer
From CBSE’s own marking scheme for this paper.
(D)
Assertion (A) is false, but Reason (R) is true.
Dual Nature of Radiation and MatterExperimental Study of Photoelectric EffectAnalyseassertion_reasoneasy
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.