Werner Heisenberg's main contribution to the development of quantum theory was
A) the uncertainty principle.
B) his explanation of the photoelectric effect, in terms of photons.
C) the nonlocality principle.
D) a method for predicting the position at which electrons or other particles will strike the viewing screen in such experiments as the electron double- slit experiment.
E) a method for predicting the overall statistical patterns that appear in the electron double- slit experiment and other experiments using microscopic particles.

Question

Quizplus · Accepted Answer

The uncertainty principle is a fundamental principle of quantum mechanics that states that it is impossible to know both the position and momentum of a particle with perfect accuracy.

Werner Heisenberg's Main Contribution to the Development of Quantum Theory