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Physics · 2025 · 1 mark
Semiconductor Electronics: Materials, Devices and Simple Circuitsp-n Junction1 markUnderstandassertion reason
CBSE 2025 · Region 2 · Set 1 · Q13
Assertion (A): In a semiconductor diode the thickness of depletion layer is not fixed. Reason (R): Thickness of depletion layer in a semiconductor…
Assertion (A) : In a semiconductor diode the thickness of depletion layer is not fixed.
Reason (R) : Thickness of depletion layer in a semiconductor device depends upon many factors such as biasing of the semiconductor.
Official answer
(A)
If both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A) .
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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.