Multiple choice

Scientist known for his theory of uncertainty is

  1. Neil Bohr

  2. Rutherford

  3. John Dalton

  4. Werner Heisenberg
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Werner Heisenberg formulated the uncertainty principle in 1927, which states that the more precisely you measure a particle's position, the less precisely you can know its momentum, and vice versa. This is a fundamental limit of quantum mechanics arising from the wave-particle duality of matter. Niels Bohr (option A, misspelled as 'Neil') developed the atomic model, Rutherford discovered the nucleus, and Dalton proposed atomic theory.

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