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 = 100g = 0.1 kg, v = 100 km//hr = (100 xx 1000m)/(60 xx 60s) = (1000)/(36) ms^(-1)`
`lamda = (h)/(mv) = (6.626 xx 10^(-34) kg m^(2) s^(-1))/((0.1 kg) (1000//36 ms^(-1))) = 238.5 xx 10^(-36) m`
As the wavelength is very small, the wave nature cannot be detected