Question

what is the definition and usefulness of Heisenberg uncertainty principle.

Answer 1

hiii janvi ...

uncertainty principle definition...... The statement in quantum mechanics, formulated by Werner Heisenberg, that it is impossible to measure two properties of a quantum object, such as its position and momentum (or energy and time), simultaneously with infinite precision.

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Answer 2

Heisenberg Uncertainty Principle
The Heisenberg uncertainty principle states that it is impossible to know simultaneously the exact position and momentum of a particle. That is, the more exactly the position is determined, the less known the momentum, and vice versa. This principle is not a statement about the limits of technology, but a fundamental limit on what can be known about a particle at any given moment.
The Heisenberg uncertainty principle is a physical law that forms part of quantum mechanics.