Q.

The value of the energy for the first excited state of hydrogen will be

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a

– 13.6 eV

b

– 3.40 eV

c

– 1.51 eV

d

– 0.85 eV

answer is B.

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Detailed Solution

Given  E1=-13.6 ev;  First  excited state is 2nd orbit; For H-atom Z = 1, n = 2
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