CBSE 2024 · Region 3 · Set 1 · Q12 · 1 mark
Si is doped with a pentavalent element. The energy required to set the additional electron free is about :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 0 \cdot 05$ eV
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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.