Explain Heisenberg's uncertainty principle.

Explanation

Position of particle (electron or other) and momentum cannot be measured simultaneously at a time.
There is always uncertainty in position `(Deltax)` and in momentum `(Deltap)`.
`therefore Deltax.Deltap~~h`
`Deltax.Deltap~~(h)/(2pi)`…..(1) Where `h=(h)/(2pi)`
From equation (1) if `Deltaxto0` then `Deltapto"Infinity"` and when `Deltapto0` then `Deltaxto"infinity"`
By making on quantity definite another quantity became undefinite.This is reality of microscopic particles.
If electron posses definite momentum p (i.e. `Deltap`=0) then it ha definite wavelength `lambda`.
`lambda=(h)/(p)`
A wave of definite (single) wavelength extends all over space.
That is its position uncertainty is infinite `(Deltaxtooo)` which is consistent with the uncertainty principle.