The angular momentum of an electron in a Bohrs orbit of \( \mathrm{H} \)-atom is \( 3.1652 \time...

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The angular momentum of an electron in a Bohrs orbit of \( \mathrm{H} \)-atom is \( 3.1652 \times 10^{-34} \mathrm{~kg}-\mathrm{m}^{2} / \mathrm{sec} \). Calculate the wavenumber in terms of Rydberg constant \( (\mathrm{R}) \) of the spectral line emitted when an electron falls from this level to the ground state. [Use \( \mathrm{h}=6.626 \times 10^{-34} \mathrm{Js} \) ]
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