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MHT CET202310 May 2023Morning ShiftPhysicsAtomic PhysicsActual

The ratio of longest to shortest wavelength emitted in Paschen series of hydrogen atom is

Options

  1. A144 63
  2. B25 9
  3. C9 25
  4. D63 144

Correct answer

A. 144 63

Step-by-step solution

For Paschen series, Longest wavelength corresponds to aligned & n ₁=3, n ₂= n ₁+1=4 & _ = 144 7 R aligned Shortest wavelength corresponds to n ₁=3, n ₂= aligned _ & = 9 R & _ _ = ( 144 7 R ) ( 9 R ) = 144 63 aligned

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