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  4. The degeneracy of hydrogen atom that has energy equal to (-R H /9) is (where R H = Rydberg constant)

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Q. The degeneracy of hydrogen atom that has energy equal to $\frac{-R_{ H }}{9}$ is (where $R_{ H }=$ Rydberg constant)

AIIMSAIIMS 2015

Solution:

Here, $\frac{-R_{ H }}{n^{2}}=\frac{-R_{ H }}{9} $
$\Rightarrow n=3$
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