The wavelength of matter wave is given by de Broglie equation
(lamda) = h / (m v)
From this relation, it is seen that as the mass of the body increases, its wavelength tends to zero. The wavelength of macroscopic bodies (i.e bodies in our daily observation) is insignificant in comparison to the size of the bodies themselves even at very low velocities.

For example, if we consider a cricket ball of mass 500 gm delivered with a velocity of 50 km / hr, its wavelength comes to
(lamda) = (6.6 x 10^-34 J.s) / [(0.5 kg) x 13.9 m/s)]
= 10^-34 m
= 10^-24 A⁰
which is insignificant in comparison to the size of the ball.

Thus, the wave nature of matter is not apparent to our daily observation

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By :-   Dr. A. W. Pangantiwar