Physics · 2025
JEE Main · 29 January 2025, Shift 2 · Q43
The number of spectral lines emitted by atomic hydrogen that is in the 4^th energy level, is
The number of spectral lines emitted by atomic hydrogen that is in the $\displaystyle 4^{\text {th }}$ energy level, is
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 6$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.