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Physics · 2022 · 3 marks
CBSE 2022 · Region 5 · Set 3 · Q5
An electron in a hydrogen atom makes transitions from orbits of higher energies to orbits of lower energies. (i) When will such transitions result in…
An electron in a hydrogen atom makes transitions from orbits of higher energies to orbits of lower energies.
(i)
When will such transitions result in (a) Lyman (b) Balmer series ?
(ii)
Find the ratio of the longest wavelength in Lyman series to the shortest wavelength in Balmer series.
Marking-scheme solution
(ii) Ratio of wave length $\displaystyle 2$
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CBSE Class 12 Physics past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.