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Manipal MET2020ChemistryStructure of Atom

The ratio of de-Broglie wavelengths for electron accelerated through 200 V and 50 V is

Options

  1. A1: 2
  2. B2: 1
  3. C3: 10
  4. D10: 3

Correct answer

A. 1: 2

Step-by-step solution

= h m v = h 2 m ( KE ) aligned ₁ & = h 2 m 200 ₂ & = h 2 m 50 ₁ ₂ & = 1 50 200 1 = 1 2 ₁: ₂ & =1: 2 aligned

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