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JEE Main201815 Apr 2018Evening ShiftChemistryStructure of AtomActual

The de-Broglie's wavelength of electron present in first Bohr orbit of ' H ' atom is:

Options

  1. A4 0.529 Å
  2. B2 0.529 Å
  3. C0.529 2 Å
  4. D0.529 Å

Correct answer

B. 2 0.529 Å

Step-by-step solution

First Bohr orbit of H atom has radius r =0.529 Å Also, the angular momentum is quantised. aligned & mvr = h 2 &2 r = h mv = & =2 0.529 Å aligned

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