The transition from the state 3n = 3 to n = 1 in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition from:

Options

(a) 2 → 1
(b) 3 → 2
(c) 4 → 2
(d) 4 → 3

Correct Answer:

4 → 3

Explanation:

The frequency of the transition v ∞ 1/n², when n = 1, 2, 3.