Heisenberg’s Uncertainty Principle
This principle states “It is impossible to specify at any given moment both the position and momentum (velocity) of an electron”.
Mathematically it is represented as Δx. Δp > (h/4π),
Where Δx uncertainty is position of the particle, Δp uncertainty in the momentum of the particle
Now since Δp = mΔv
So equation becomes, Δx.mΔv > (h/4π) or Δx × Δv > (h/πm)
In terms of uncertainty in energy, and uncertainty in time this principle is written as, ΔE.Δt > (h/4π)