If uncertainty in position and velocity are equal then uncertainty in momentum will be:

Options

A. `1/2 sqrt((mh)/(pi))`
B. `1/2 sqrt((h)/(pi m))`
C. `h/(4 pi m)`
D. `(nh)/(4pi)`

Answer

A

Explanation

`Delta x = Deltav , Delta x = (h)/(4pi m . Delta v)`
`(Deltav)^2 = (Deltax)^2 = (h)/(4pi m), mDelta v =sqrt((mh)/(rpi))`