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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
A
4 → 3
B
2 → 1
C
3 → 2
D
4 → 2
Detailed Solution
Infrared radiation has less energy than ultraviolet, so the transition must have a smaller energy gap than 3 → 1.
2 → 1 belongs to the Lyman series (ultraviolet); 3 → 2 and 4 → 2 belong to the Balmer series (visible).
4 → 3 belongs to the Paschen series, which lies in the infrared region.
2 → 1 belongs to the Lyman series (ultraviolet); 3 → 2 and 4 → 2 belong to the Balmer series (visible).
4 → 3 belongs to the Paschen series, which lies in the infrared region.