CBSE 2025 · Region 6 · Set 1 · Q14 · 1 mark
Assertion (A) : A hole is an apparent free particle with effective positive electronic charge. Reason ( $\displaystyle R$ ) : A hole is not necessarily a vacancy left behind by an electron in the valence band.
Official answer
From CBSE’s own marking scheme for this paper.
(C)
Assertion (A) is true, but Reason (R) is false.
Semiconductor Electronics: Materials, Devices and Simple CircuitsExtrinsic SemiconductorUnderstandassertion_reasonmedium
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CBSE Class 12 Physics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.