JEE Main 2026 — Structure of Atom Question with Solution
JEE Main 2026 (28 January Shift 1)
Question
The wave numbers of three spectral lines of H atom are considered. Identify the set of spectral lines belonging to Balmer series.
( Rydberg constant)
( Rydberg constant)
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
For the Balmer series, transitions end at n=2.
Using the Rydberg formula , we calculate wavenumbers for transitions from different upper levels:
From n=3:
From n=4:
From n=5:
Option (4) contains exactly these three wavenumbers corresponding to the Balmer series transitions.
Using the Rydberg formula , we calculate wavenumbers for transitions from different upper levels:
From n=3:
From n=4:
From n=5:
Option (4) contains exactly these three wavenumbers corresponding to the Balmer series transitions.
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This is a previous-year question from JEE Main 2026, covering the Structure of Atom chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.