Question:medium

Hydrogen atom from excited state comes to the ground stage by emitting a photon of wavelength λ. If R is the Rydberg constant, the principal quantum number n of the excited state is

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Always set $n_1=1$ for transitions to the ground state.

Updated On: Apr 10, 2026

$\sqrt{\frac{\lambda R}{\lambda R-1}}$
$\sqrt{\frac{\lambda}{\lambda R-1}}$
$|\frac{\lambda R^{2}}{\lambda R-1}$
$\sqrt{\frac{\lambda R}{\lambda-1}}$

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The Correct Option is A

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