#EINSTEIN AND THE PHOTOELECTRIC EFFECT 1n 1905, Einstein extended the Planck’s hypothesis to explain the photoelectric effect, which is defined as the emission of electrons by a metal surface when it is radiated by light or more energetic photons.
The kinetic energy of the emitted energy electron depend on the frequency v of the radiation and not on the intensity for a given metal There is also a threshold frequency vo below which no electron can be emitted Also emission takes place as soon as light shines on the surface and there is no recognizable delay, Einstein showed that these results can be explained by two assumptions.
The kinetic energy of the emitted energy electron depend on the frequency v of the radiation and not on the intensity for a given metal There is also a threshold frequency vo below which no electron can be emitted Also emission takes place as soon as light shines on the surface and there is no recognizable delay, Einstein showed that these results can be explained by two assumptions.