A particle with mass and nonzero kinetic energy will
A) always have the same wavelength as a photon with the same kinetic energy.
B) always have a greater wavelength than a photon with the same kinetic energy.
C) always have a shorter wavelength than a photon with the same kinetic energy.
D) sometimes have a greater wavelength than a photon with the same kinetic energy.
E) sometimes have a shorter wavelength than a photon with the same kinetic energy.

Question

Quizplus · Accepted Answer

A particle with mass will always have a shorter wavelength than a photon with the same kinetic energy because the de Broglie wavelength for a particle with mass is inversely proportional to its momentum, which is greater than that of a photon with the same energy.

A Particle with Mass and Nonzero Kinetic Energy Will