# State and explain heisenberg uncertainty principle?

**Question: State and explain heisenberg uncertainty principle?**

The Heisenberg uncertainty principle, also known as the uncertainty principle, is a fundamental principle in quantum mechanics that states that it is impossible to simultaneously determine the exact position and momentum of a particle with perfect accuracy.

More specifically, the Heisenberg uncertainty principle states that the product of the uncertainties in the position and momentum of a particle must always be greater than or equal to a constant value, known as Planck's constant (h). Mathematically, this can be expressed as:

Î”x * Î”p ≥ h/4Ï€

where Î”x is the uncertainty in the particle's position, Î”p is the uncertainty in its momentum, and h is Planck's constant.

This principle arises from the wave-particle duality of matter, which means that particles can exhibit both wave-like and particle-like behavior. The position of a particle can be determined by observing it as a wave, while its momentum can be determined by observing it as a particle. However, the act of observing the particle necessarily disturbs its state, so it becomes impossible to know both the position and momentum of the particle with perfect accuracy at the same time.

The Heisenberg uncertainty principle has important implications for the behavior of subatomic particles, and it has been confirmed through numerous experiments. It is a fundamental limitation on the precision with which measurements can be made in the microscopic world, and it has implications for a wide range of fields, including quantum computing, atomic physics, and chemistry.

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