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MHT CET2009PhysicsAtomic Physics

For the Bohr's first orbit of circumference 2 , the de-Broglie wavelength of revolving electron will be

Options

  1. A2
  2. B1 2 r
  3. C1 4 r

Correct answer

A. 2

Step-by-step solution

m v r= n h 2 , according to Bohr's theory 2 r=n ( h m v )=n for n=1, =2 r

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