Calculate the uncertainity in velocity of a cricket ball of mass 150 g if the uncertainity in its position is of the order of 1 Å`(h=6.6xx10^(-34)"kg m"^(2)s^(-1))`

Options

A. `3.499 xx 10^(-24)ms^(-1)`
B. `3.499 xx 10^(-21) ms^(-1)`
C. `3.499x10^(-20)ms^(-1)`
D. `3.499xx10^(-23)ms^(-1)`

Answer

A

Explanation

`Deltax.Deltap=(h)/(4pi) rArr Deltav=3.499 xx 10^(-24)ms^(-1)`