JEE Main Chemistry · Structure of Atom

Longest and Shortest Wavelengths in a Series

Longest and Shortest Wavelengths in a Series (Structure of Atom) was asked 2 times in 2 JEE Main shifts, 2020–2026, out of the 42 shifts Lumi analysed.

Times asked: 2; in 2 shifts
Years: 2020–2026
Usual format: Other; Conceptual
Pattern: Occasional; repeats across shifts

How it is asked

Ratio of wavelengths in spectral series
Count correct statements on balmer series

Difficulty

Easy 0Medium 2Hard 0

Where it sits

Chapter: Structure of Atom. Topic: Bohr's Atomic Theory, 15 questions over 8 ideas.

All 2 questions

Newest first, each with its options and official answer.

6 Apr 2026, Shift 1 · Q52If shortest wavelength of hydrogen atom in Lyman series is $x$ , then longest wavelength in Balmer series of $\mathrm{He^+}$ is:MediumSingle correct
8 Jan 2020, Shift 1 · Q30For the Balmer series in the spectrum of H atom, $\bar{\nu} = R_H\left\{\frac{1}{n_1^2}-\frac{1}{n_2^2}\right\}$ , the correct statements…MediumOther