NTA Abhyas JEE Main2020PhysicsAtomic PhysicsPractice
Maximum energy is evolved during which of the following transitions?
Options
- An = 1 t o n = 2
- Bn = 2 t o n = 6
- Cn = 2 t o n = 1
- Dn = 6 t o n = 2
Correct answer
C. n = 2 t o n = 1
Step-by-step solution
When transition is from upper state to lower state, the energy is evolved. Therefore, options (C) and (d) are practicable. In option (C) E = - R h c 1 1 2 - 1 2 2 = - 3 4 R h c In option (d) E = - R h c 1 2 2 - 1 6 2 = - 2 9 R h c Thus, maximum energy is evolved in option (c).