A) \[n=1\] to \[n=2\]
B) \[n=2\] to \[n=6\]
C) \[n=2\] to \[n=1\]
D) \[n=6\] to \[n=2\]
Correct Answer: C
Solution :
Energy is evolved only when an electron jumps from an outer stationary orbit of energy \[{{E}_{2}}\] to inner stationary orbit of energy \[{{E}_{1}}\], i.e.,\[E\propto \left( \frac{1}{n_{1}^{2}}-\frac{1}{n_{2}^{2}} \right)\propto \frac{n_{2}^{2}-n_{1}^{2}}{n_{1}^{2}n_{2}^{2}}\] Thus, maximum energy is evolved when there is a large difference between \[{{n}_{1}}\] and \[{{n}_{2}}\] and their product is lesser (i.e., when \[{{n}_{1}}=2\] and \[{{n}_{2}}=1\])
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