What is the de-Broglie wavelength of (a) a bullet of mass `0.040kg` traveling at the speed of `1.0kms^(-1)`. (b) a ball of mass `0.060 kg` moving at a speed of `1.0ms^(-1)` and (c) a dust particle of mass `1.0xx10^(-9) kg` drifting with a speed of `2.2 ms^(-1)`? `h=6.63xx10^(-34)Js`.

Explanation

Given, for ball m = 0.060 kg and `upsilon = 1 m//s rArr lambda = (h)/(m upsilon)= (6.63xx10^(-34))/(0.060xx1)=1.1xx10^(-32)m`