Module 5 : MODERN PHYSICS
Lecture 26 : Wave Nature of Particle - the de Broglie Hypothesis
  Example 13
Calculate the wavelength associated with a cricket ball of mass 0.2 kg moving with a speed of 30 m/s.
  Solution :
$\displaystyle p = mv = 0.2\times 30 = 6\ \ {\rm kg\ m/s}$
 
$\displaystyle \lambda = \frac{h}{p} = \frac{6.63\times 10^{-34}}{6} = 1.1\times 10^{-34}\ \ {\rm m}$

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