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)