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The total energy of eletcron in the grou...

The total energy of eletcron in the ground state of hydrogen atom is `-13.6 eV`. The kinetic enegry of an electron in the first excited state is

A

1.7 eV

B

3.4 eV

C

6.8 eV

D

13.6 eV

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The correct Answer is:
B
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