A) 10.2 eV
B) 12.1 eV
C) 12.5 eV
D) None of these
Correct Answer: B
Solution :
The energy taken by hydrogen atom corresponds to its transition from\[n=1\]to\[n=3\]state. \[\Delta E=13.6\left( 1-\frac{1}{9} \right)\] \[=13.6\times \frac{8}{9}=12.1\,eV\]You need to login to perform this action.
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