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JEE Main2013ChemistryStructure of AtomActual

The de Broglie wavelength of a car of mass 1000 kg and velocity 36 ~km / hr is :

Options

  1. A6.626 10⁻³⁴ ~m
  2. B6.626 10⁻³⁸ ~m
  3. C6.626 10⁻³¹ ~m
  4. D6.626 10⁻³⁰ ~m

Correct answer

B. 6.626 10⁻³⁸ ~m

Step-by-step solution

aligned & = h m v & h=6.6 10⁻³⁴ ~J - s & m=1000 ~kg & v=36 ~km / hr = 36 10^3 60 60 ~m / sec =10 ~m / sec & = 6.6 10⁻³⁴ 10^3 10 =6.6 10⁻³⁸ ~m & aligned

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