According to de-Brogile, matter should exhibit dual behaviour, that is both particle and wave like properties. However, a cricket ball of mass 100 g does not move like a wave when it is thrown by a b owler at a speed of 100km/h. calculate the wavelength of the ball and explain why it does not show wave nature.

Explanation

`m = 100 g = 0.1 kg`
`v = 100 km//h = (100 xx 1000)/(60 xx 60)`
`= (1000)/(36) ms^(-1)`
`lambda = h/(mv) = (6.63 xx 10^(-34) kg m^2 s^(-1))/((0.1 kg ) (1000//36 ms^(-1)))`
`= 2.387 xx 10^(-34)m`.
Since the wavelength is very small, the wave nature cannot be detected.