A quantum particle
A) can be localized in space.
B) can be represented by an infinitely long wave having a single frequency.
C) can be represented by a wave packet.
D) travels at the phase speed of the infinitely long wave having the highest frequency.
E) has the highest probability of being present in those regions of space where its component waves interfere destructively.

Question

Quizplus · Accepted Answer

A quantum particle can be represented by a wave packet, which is a sum of waves with different frequencies and wavelengths. The wave packet describes the particle's position and momentum more accurately than a single-frequency wave. A quantum particle cannot be determined to have a definite position or momentum until it is measured, and the wave packet gives the probabilities of finding the particle in different locations or with different momenta.

A Quantum Particle