Question

Physical significance of Heisenberg uncertainty principle in daily life

Answer 1

The Heisenberg uncertainty principle is a physical law that forms part of quantum mechanics. It says that the more precisely you measure the position of a particle, the less precisely you can know it's motion (momentum or velocity). ... It may not be easy to understand this principle, but it is even harder to explain it.

Answer 2

Heisenberg's Uncertainty principle is basically the base of quantum mechanics. Before moving on to quantum mechanics we shall first see the flaws of classical physics.

Classical physics stated that if we know the position of an object we can determine it's momentum& vice versa. Now talking in terms of classical physics if we know a position of an object we can find it's everything , thanks to Sir Isaac Newton.But but but the smaller an object gets, the more quantum mechanical it getsi.e it's less able to be described by Newtonian mechanics.

Werner Heisenberg was not at all satisfied with classics physics. He tried to find the position of a particle with given velocity many times. Evertime he practiced this experiment the result was something else. Finally he came up with something spectacular. He gave the world Uncertainty principle. He stated that the more precisely we measure the position of a particle the less precisely we can know it's momentum& vice versa.

The uncertainty principle is alternatively expressed in terms of a particle’s momentum and position. The momentum of a particle is equal to the product of its mass times its velocity. Thus, the product of the uncertainties in the momentum and the position of a particle equals h/4pi or more. The product of the uncertainty in an energy measurement and the uncertainty in the time interval during which the measurement is made also equals h/4pi or more.

The larger the object is, the more sure we can be that it obeys the standard laws of physics, so the Heisenberg Uncertainty Principle only applies to those things that we can't readily observe. We can't apply Newtonion physics on the objects which are small or the objects which can't be seen with naked eye. If we are talking about particles like elctron proton & neutron , classical physics will fail here. That's the main reason Heisenberg's Uncertainty principle is so famous & a pivot to the Quantum mechanics.

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