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The excitation energy of a hydrogen l...

The excitation energy of a hydrogen like ion to its first excited state is 40.8 eV. The energy needed to remove the electron from the ion in the ground state is

A

54.4 eV

B

13.6 eV

C

40.8 eV

D

27.2 eV

Text Solution

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The correct Answer is:
A
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