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Physics Hard CSS FPSC Uploaded: 13 Jul 2026

Which principle states that it is impossible to simultaneously know the exact position and momentum of a particle?

  • A Pauli Exclusion Principle
  • B Superposition Principle
  • C Correspondence Principle
  • D Heisenberg Uncertainty Principle
Correct Answer: Option D — Heisenberg Uncertainty Principle
Explanation:
Heisenberg's Uncertainty Principle states that the more precisely the position of a particle is determined the less precisely its momentum can be known and vice versa.
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