A) n = 2 to n = 6
B) n = 6 to n = 2
C) n = 2 to n = 1
D) n = 1 to n = 2
Correct Answer: C
Solution :
Emission spectrum would be found when electron makes a transition from higher energy level to lower energy level. Frequency of emitted photon is proportional to change in energy of two energy levels, i.e., \[x+\frac{\sqrt{3}}{2}y=0\] So, emitted energy will be maximum for maximum v and hence, emitted photon has maximum frequency when there is a transition of electron from n=2 to n=1. While in the transition, from n=1 to n=2, energy will be absorbed.
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