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The energy of an electron in first Bohr ...

The energy of an electron in first Bohr orbit of H-atom is `-13.6 eV.` The possible energy value of electron in the excited state of `Li^(2+) ` is

A

`- 122.4 eV `

B

` 30.6 eV `

C

` -30.6 eV `

D

` 13.6 eV `

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