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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 from

Options

  1. A2 1
  2. B3 2
  3. C4 2
  4. D5 4

Correct answer

D. 5 4

Step-by-step solution

IR corresponds to least value of ( 1 n₁^2 - 1 n₂^2 ) i.e. from Paschen, Bracket and Pfund series. Thus the transition corresponds to 5 3 .

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