A) 1.89 eV
B) 2.55 eV
C) 12.09 eV
D) 12.75 eV
Correct Answer: B
Solution :
| [b] Energy released\[=13.6\left[ \frac{1}{{{(2)}^{2}}}-\frac{1}{{{(4)}^{2}}} \right]=2.55\,eV\] |
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