The more precisely the position of a particle is known,
A) the more precisely its momentum can be known.
B) the more precisely its energy can be known.
C) the less precisely its momentum can be known.
D) the shorter its de Broglie wavelength is.

Question

Quizplus · Accepted Answer

This is a fundamental principle of quantum mechanics known as the Heisenberg uncertainty principle. The more precisely the position of a particle is known, the less precisely its momentum can be known. This is because the act of measuring the position of a particle disturbs its momentum, and vice versa.

The More Precisely the Position of a Particle Is Known