Question

The uncertainity in momentum of an electron is equal to 1 x 10-189 cm 8-1. The uncertainity of electron velocity
electron is 9 x 10-289)
(A) 1 x 108cm s-1
(B) 1 x 1011 cm 8-1
(C) 1 x 10cm s-1
(D) 1 x 106cm 8-1​

Answer 1

Answer:

The uncertainty in the position of electron is

=Δx= h/4πΔp

=6.626×10 −34/4×3.1416×1.0×10 −5

=5.27×10 −30m.

Hence, the correct option is C