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The energy of a hydrogen atom in the gro...

The energy of a hydrogen atom in the ground state is `-13.6` eV. The energy of `He^(+)` ion in the first excited state will be

A

`-13.6 eV`

B

`14.4 eV`

C

`-6.8 eV`

D

`-27.2 eV`

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The correct Answer is:
A
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