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Bohrs model is contradicted by__________________?

Correct answer: C. Heisenbergs uncertainty principle

  • A. Plancks theory
  • B. Dual nature of matter
  • C. Heisenbergs uncertainty principle
  • D. All of these

Explanation

Bohr's model assigns an electron a definite circular orbit, but Heisenberg's uncertainty principle states that exact position and momentum cannot be known simultaneously. This directly contradicts the idea of a precisely defined orbit. Students may choose “all of these,” but Planck's quantum theory supports energy quantisation and is not itself a contradiction of Bohr's model.

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