An electron and a photon each have a wavelength of 1.00 nm. Find
the energy of the photon .

An electron and a photon each have a wavelength of 1.00 nm. Find their momenta .

An electron and a photon each have a wavelength of 1.00 nm. Find the kinetic energy of electron .

An electron and a proton have the same de-Broglie wavelength . Then the kinetic energy of the electron is

Find energy of each of the photons which have wavelength of 0.50 A.

If we express the energy of a photon in KeV and the wavelength in angstroms , then energy of a photon can be calculated from the relation

Nitrogen laser produces a radiation at a wavelength of 337.1 nm. If the number of photons emitted is 5.6 xx 10^24 , Calculate the power of this laser.

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

Find the ratio of the de Broglie wavelengths of an electron and a proton when both are moving with the : same energy . State which of the two will have the longer wavelength in each case?

A photon and an electron have the same wavelength then, the velocity of photon is