The uncertainty in the position of a moving bullet of mass `10 g` is `10^-5 m`. Calculate the uncertainty in its velocity.

Options

A. `5.2 xx 10^-28 m//sec`
B. `3.0 xx 10^-28 m//sec`
C. `5.2 xx 10^-22 m//sec`
D. `3 xx 10^-22 m//sec`

Answer

A

Explanation

(a) Uncertainly of moving bullet velocity
`Delta v = (h)/(4 pi xx mxx Delta v) = (6.625 xx 10^-34)/(4 xx 3.14 xx .01 xx 10^-5)`
=`5.2 xx 10^-28 m//sec`.