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JEE Main20209 Jan 2020Morning ShiftChemistryStructure of AtomActual

The de Broglie wavelength of an electron in the 4 t h Bohr orbit is:

Options

  1. A2 π a 0
  2. B4 π a 0
  3. C6 π a 0
  4. D8 π a 0

Correct answer

D. 8 π a 0

Step-by-step solution

2 π r = n λ 2 π × n 2 Z a 0 = n λ 2 π × 4 2 1 a 0 = n λ λ = 8 π a 0

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