Chemistry · 2026
JEE Main · 24 January 2026, Shift 2 · Q52
The wavelength of spectral line obtained in the spectrum of Li^2+ ion, when the transition takes place between two levels whose sum is 4 and…
The wavelength of spectral line obtained in the spectrum of $\displaystyle \mathrm{Li}^{2+}$ ion, when the transition takes place between two levels whose sum is $\displaystyle 4$ and difference is $\displaystyle 2$ , is
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 1.14 \times 10^{-6} \mathrm{~cm}$
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JEE Main 2026 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.