Review of Classical Wave

Compton Effect
• In this experiment, an x-ray beam is incident on a solid. A portion of the
beam was deflected and the frequency of the deflected wave was shifted
compared to the incident wave. The Compton effect, was explained by
proposing that photons carry momentum.
• If a photon collides with an
electron, the wavelength and
trajectory of the photon is
observed to change. The
wavelength shift of light after
collision with an electron is
consistent with a transfer of
momentum from a photon to
the electron. The loss of
photon energy is reflected in a
red shift of its frequency.