Q15
A three-level system of atoms has N1 atoms in level E1, N2 in level E2 and N3 in level E3 (N2 > N1 > N3 and E1 < E2 < E3). Lasere mission is possible between the levels
A.
E3 → E1
B.
E2 → E1
AnswerC.
E3 → E2
D.
E2 → E3
Answer: Option B
Solution
Answer: Option B
No explanation is given for this question Let's Discuss on Board