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Physics · 2026 · 1 mark
CBSE 2026 · Region 5 · Set 1 · Q10
The energy of an electron in an orbit in hydrogen atom is -3‧4 eV. Its angular momentum in the orbit will be:
The energy of an electron in an orbit in hydrogen atom is -$\displaystyle 3$‧$\displaystyle 4$ eV. Its angular momentum in the orbit will be :
Official answer
(C)
$\displaystyle \frac{\mathrm{h}}{\pi}$
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CBSE Class 12 Physics past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.