CBSE 2025 · Region 7 · Set 1 · Q9 · 1 mark
Germanium crystal is doped at room temperature with a minute quantity of boron. The charge carriers in the doped semiconductors will be :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
holes and few electrons
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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.