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MHT CET20226 Aug 2022Morning ShiftPhysicsAtomic PhysicsActual

The wave number of first line in Lyman series of hydrogen atom is ( R is Rydberg's constant)

Options

  1. A3 R 2
  2. B3 R 4
  3. C2 R
  4. DR 2

Correct answer

B. 3 R 4

Step-by-step solution

According to Rydberg equation: 1 =R (1- 1 n^2 ) For first line, electron moves from n=2 to the lowest energy level of the electron. Therefore, corresponding wave no. is given by: 3 R 4

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