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JEE Main2003ChemistryStructure of AtomActual

The de Broglie wavelength of a tennis ball of mass 60 ~g moving with a velocity of 10 metres per second is approximately

Options

  1. A10⁻³¹ metres
  2. B10⁻¹⁶ metres
  3. C10⁻²⁵ metres
  4. D10⁻³³ metres Planck's constant, h =6.63 10⁻³⁴ Js .

Correct answer

D. 10⁻³³ metres Planck's constant, h =6.63 10⁻³⁴ Js .

Step-by-step solution

= h mv = 6.6 10⁻³⁴ 60 10⁻³ 10 =10⁻³³ ~m

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