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Question
The energy of an electron in hth orbit of hydrogen atom is –13.6/n2ev energy required to excite the electron from the first orbit to the third orbit is
Options
10.2 j
12.09 j
12.09 ev
13. ev
MCQ
Solution
12.09 ev
Explanation:
E = E3 – E1
= `- (-13.6)/3^2 - ((= 13.6)/1^2)` = 12.9 ev.
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