A) \[122.4\] eV
B) \[12.1\] eV
C) \[36.3\] eV
D) \[108.8\] eV
Correct Answer: D
Solution :
\[E=-13.6{{(3)}^{2}}\left[ \frac{1}{{{3}^{2}}}-\frac{1}{{{1}^{2}}} \right]\] \[=13.6\times 9\times \frac{8}{9}\] \[=108.8\] eV
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