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AP EAMCET2008ChemistryStructure of Atom

The velocities of two particles A and B are 0.05 and 0.02 ~ms ⁻¹ respectively. The mass of B is five times the mass of A . The ratio of their de-Broglie's wavelength is

Options

  1. A2: 1
  2. B1: 4
  3. C1: 1
  4. D4: 1

Correct answer

A. 2: 1

Step-by-step solution

Given, velocity of particle A=0.05 ~ms ⁻¹ Velocity of particle B=0.02 ~ms ⁻¹ Let the mass of particle A=x The mass of particle B=5 x de-Broglie's equation is = h m v For particle A _A= h x 0.05 For particle B _B= h 5 x 0.02 Eq (i)/(ii) _A _B = 5 x 0.02 x 0.05 aligned _A _B & = 2 1 or & 2: 1 aligned

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