Which of the following fundamental principles is directly responsible for ruling out the existence of definite trajectories or fixed orbits of electrons in an atom as proposed by Bohr?

Question

Prashant Kotian · Accepted Answer

Correct answer: B. Heisenberg's uncertainty principle states that the exact position and momentum of a microscopic particle cannot be determined simultaneously. A definite trajectory (like a Bohr orbit) implies that both position and momentum are known exactly at all times, which violates this principle.

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