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The energy of an electron in excited hyd...

The energy of an electron in excited hydrogen atom is -3.4 eV . Then, according to Bohr's therory, the angular momentum of the electron of the electron is

A

`2.11xx10^(-34)`

B

`3xx10^(-34)`

C

`2xx10^(-34)`

D

`0.5xx10^(-34)`

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The correct Answer is:
A
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