If the wavelength of a photon is the same as the de Broglie wavelength of an electron, which one has the greater momentum?
A) The photon because it is traveling faster.
B) The electron because it has more mass.
C) They both have the same momentum.

Question

Quizplus · Accepted Answer

The momentum of a particle is given by $p = \frac{h}{\lambda}$, where $p$ is the momentum, $h$ is Planck's constant, and $\lambda$ is the wavelength. If the wavelength ($\lambda$) of the photon is the same as the de Broglie wavelength of the electron, their momenta will be the same, regardless of their masses or speeds.

If the Wavelength of a Photon Is the Same as the De