The angular momentum of an electron in a...

The angular momentum of an electron in a Bohr's orbit of He+ is `3.1652xx10^-34 kg-m^2/sec` what is the wavenumber in terms of Rydberg constant of the spectral line emitted when an electrons falls from this level to the first excited state [h=`6.626xx10^-34`Js]

5R/9

3R/4

8R/9

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