Question

Ques.
An electron has a speed of 500 m/s with an uncertainty of 0.02% . What is the uncertainty in locating its position ? [ Given mass of electron = 9.1*10^-31 Kg , h = 6.6*10^-34 Kg m^2/s Js ]

Answer 1

5.77 xx 10^(-4) m`

Solution :

Uncertainty in speed `(Delta v) = (0.02)/(100) xx 500 m s^(-1) = 0.1 ms^(-1)`