Consider figure for photoemission. How would you reconcile with momentum-conservatin? Note light (photons) have momentum in a different direction than the emitted electrons.

Consider figure for photoemission. How would you reconcile with momentum-conservation ?Note light (photons)have momentum in a different direction than the emitted electrons.

Consider Fig. EP 11.9 for photomission. How would you reconcile with momentum conservation? Note light (photons) have momentum in a different direction than the emitted electrons.

The electron in a hydrogen atom is in the third energy state. How many different frequencies can the emitted photon have ?

If the electron in a hydrogen atom is raised to the third orbit, how many photons of different energies may be emitted ?

The momentum of a photon having energy equal to the rest energy of an electron is

The momentum of a photon having energy equal to the rest energy of an electron is

Statement - 1: When white light (which contains all wavelengths) is passed through atomic hydrogen gas then transmitted beam is not having some wavelengths whose photons energy is equal to difference of two energy levels.This is due to absorbtion of photon by atom.The resulting excited atom then re-radiate photons in random direction with only a few in the same direction as of original beam of white light. Statement - 2: Momentum remains conserved during absorption or emission of photon by atomic hydrogen

In an experiment on photoelectric effect, a photon is incident on an electron from one direction and the photoelectron is emitted almost in the opposite direction. Does this violate conservation of momentum ?

In an experiment on photoelectric effect, a photon is incident on an electron from one direction and the photoelectron is emitted almost in the opposite direction. Does this violate conservation of momentum ?