It is not possible to determine preciselt both the position and momentum (or velocity) of a small moving particle such as electron, proton etc. This is known as Heisenber uncertainty principle. The mathemactical form of this principle is :
`Delta x.Delta p ge (h)/(4pi)` (constant)
However this principle is irrevalent in case of bigger particles such as a cup, ball, car etc., that we come across in our daily life.
In case of small microscopic particles, Heisenberg's uncertainty principle rules out simultaneous exact determination of their

Options

A. energy and velocity
B. charge density and radius
C. postion and momentum
D. none of the above three

Answer

C

Explanation

Statement of Heisenberg uncertainty principle