The measurement of the electron position is associated with an uncertainty in momentum, which is equal to 1 10⁻¹⁸ ~g ~cm ~s ⁻¹ . The uncertainty in electron velocity is, (mass of an electron is 9 10⁻²⁸ ~g )

Step-by-step solution

Key Idea : x p h 4 where, p= uncertainty in momentum and v= uncertainty in velocity Here, p=1 10⁻¹⁸ ~g ~cm ~s ⁻¹ aligned m & =9 10⁻²⁸ ~g y & = p m = 1 10⁻¹⁸ 9 10⁻²⁸ & =1.1 10^9 & 1.0 10^9 ~cm ~s ⁻¹ aligned