Calculate the uncertainty in the velocity of an electron of the uncertainty in its position is of the order of `1 Å`

Explanation

According to Heisenbenrg uncertainty principle
`Delta u - Delta x = (h)/(4pi m)`
`Delta u = (h)/(4pi m Delta x) = (6.62 xx 10^(-34))/(4 xx 3.14 xx 9.108 xx 10^(-31) xx 10^(-10))`
`= 5.7 xx 10^(5) m s^(-1)`