By Per

0

Posted: 2013-07-07

Uncertainty relation

Uncertainty relation

$$$\Delta p \Delta x \geq {h \over 4 \pi}$$$

This relation is called Heisenbergs uncertainty relation and tells us how a precise measurement in position ($$x$$) yields a spread in the momentum ($$p$$) or vice versa. Here $$h$$ is a very small quantity $$\sim 10^{-34}Js$$ and is called Planck's constant.