CBSE 2024 · Region 3 · Set 1 · Q13 · 1 mark
Assertion (A) : In a semiconductor, the electrons in the conduction band have lesser energy than those in the valence band. Reason ( $\displaystyle R$ ) : Donor energy level is just above the valence band in a semiconductor.
Official answer
From CBSE’s own marking scheme for this paper.
(D)
Assertion (A) is false and Reason (R) is also false.
Semiconductor Electronics: Materials, Devices and Simple CircuitsExtrinsic SemiconductorAnalyseassertion_reasonmedium
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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.