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Physics · 2025 · 1 mark
Semiconductor Electronics: Materials, Devices and Simple CircuitsExtrinsic Semiconductor1 markUnderstandassertion reason
CBSE 2025 · Region 6 · Set 1 · Q14
Assertion (A): A hole is an apparent free particle with effective positive electronic charge. Reason ( R ): A hole is not necessarily a vacancy left…
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
(C)
Assertion (A) is true, but Reason (R) is false.
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CBSE Class 12 Physics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.