Uncertainty Principle

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Uncertainty principle

The uncertainty is a consequence of the laws of Quantum Mechanics, and was first proposed by Werner Heisenberg in the 1920s. It states that the position and momentum of a particle cannot be known at the same time with infinite precision. In fact, the greater the precision in the position, the greater the indeterminacy will be for the momentum, and vice-versa. The mathematical form of this is:


Where Δx is the uncertainty in position, Δp the uncertainty in momentum and ħ is the reduced Planck’s constant. The uncertainty principle is a consequence of the wave-like nature of particles.

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