The transition from the state n = 3 to n = 1 in a hydrogen

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

1. 2 → 1
2. 3 → 2
3. 4 → 2
4. 4 → 3

Correct Option: D

∵ The frequency of the transition

V ∝	1
	n²

when n = 1, 2, 3.