A) 36.3 eV
B) 108.8 eV
C) 122.4eV
D) 12.1 eV
Correct Answer: B
Solution :
[b] Energy of excitation, \[\Delta E=13.6{{\pi }^{2}}\left( \frac{1}{{{\eta }_{1}}}-\frac{1}{{{\eta }_{2}}} \right)eV\] \[\Rightarrow \Delta E=13.6{{\left( 3 \right)}^{2}}\left( \frac{1}{{{1}^{2}}}-\frac{1}{{{3}^{2}}} \right)=108.9eV\]You need to login to perform this action.
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