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Heisenberg's Uncertainty Principle is the principle that states that the momentum and the position of a quantum particle can not be simultaneously accurately known. This means that the more precisely you know the momentum, the less you know about the position and vice-versa.

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10y ago
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11y ago

ΔX * ΔP ≥ h / (4π)

Also, ΔE * Δt ≥ h / (4π)

  • X = position, ΔX = uncertainty in position
  • P = momentum, ΔP = uncertainty in momentum
  • E = energy, ΔE = uncertainty in energy
  • t = time, Δt = uncertainty in time
  • h = Plancks' constant
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13y ago

It says that two non-commuting observables are unable to be known simultaneously to an arbitrary precision. Example: Position and momentum are two non-commuting observables. So if I have an electron I am unable to make the statement that at exactly 1 second the electron was at position X and had momentum P.

There are many other non-commuting observable, but two other important ones are Energy, E, and time, t.

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11y ago

The Uncertainty principle says that you cannot know the exact position of particle or it's velocity. But if you know more about it's position, the less you know about the velocity and visa versa.

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11y ago

Heisenburg Uncertainty principle is the fundamental principle of science and its expresses the limitation of nature.

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Related questions

What is the significance of uncertainty principle in your daily life?

The Heisenberg uncertainty principle, which is very important at the subatomic level, has no affect on my daily life.


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The equation of uncertainty principle is ΔxΔp≥ℏ.


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States that is imposible to know both the velocity and the position of a particle at the same time?

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Since it is called "the Heisenberg Uncertainty Principle" it is neither a scientific law nor a theory. It is a principle.


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