The fact that photons carry energy was established by

The momentum of a photon of energy will be

The momentum of a photon with energy 20 eV is

The moving electron and aphoton have same de Broglie wavelength. Show that the elevtron possesses more energy than carried by the photon.

Photon and its energy and momentum

The wavelength associated with a photon and the de Broglie wavelength of a moving electron are equal. If they carry the same amount of energy, what is the value of this wavelength?