The transition from the state n = 4 to n = 3 in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition.
A
2→1
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B
3→2
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C
4→2
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D
5→4
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Solution
The correct option is D5→4 The infrared radiations have lower energy than Ultraviolet radiation. The only possible transition is n=5 to n = 4. As n increases, the difference of successive energy level decreases and energy emitted also decreases.