The uncertainty principle states that
A)only momentum and velocity can be described with unlimited precision.
B)the displacement of a particle can be described with unlimited precision by using quantum mechanics.
C)nothing is smaller than Planck's constant.
D)the momentum and displacement cannot be measured simultaneously with unlimited accuracy.
E)either the momentum or the velocity,but not both,can be measured with unlimited accuracy.

Question

Quizplus · Accepted Answer

The uncertainty principle states that the momentum and displacement of a particle cannot be measured simultaneously with unlimited accuracy. This means that the more accurately one quantity is measured, the less accurately the other can be measured, and their product must always be greater than or equal to Planck's constant. The uncertainty principle is a fundamental principle of quantum mechanics.

The Uncertainty Principle States That