Скачать или смотреть Failure of classical wave model - Photoelectric Effect Simulation

here is an amazing explanation of the failure of the classical wave model of light in explaining the photoelectric effect.
1) When light is incident on the surface of a metal, we predict from the classical wave model that if the light intensity or the power is sufficiently high electrons are liberated whatever the frequency of the incident light. Experimentally, even though the intensity is increased, no electrons are liberated from the surface of the metal. This is because, electrons are not liberated when the wavelength of the incident light is greater than the threshold wavelength of this metal regardless of the light intensity.
2) As the light intensity or power incident on a metal increases, we predict from the classical wave model that electrons should be ejected with more kinetic energy since the energy is proportional to the average power. But according to the experimental result, as the intensity or the power of the incident light increases the speed or the kinetic energy of each electron does not change. So the kinetic energy does not depend on the power or the intensity of the incident light. Only more electrons are liberated when we increase the power.
3) At low light intensities, we predict from the classical wave model that the photoelectrons need a measurable time interval to absorb energy before they acquire enough kinetic energy to escape from the metal. Experimentally, the electrons are liberated almost instantly from the surface of the metal even at very low intensity. The photoelectrons are emitted from the surface of the metal in less than [10^(-9)] seconds even at very low light intensities.

You can watch:
1) Photoelectric effect (1):    • Photoelectric effect (1)  
2) Photoelectric effect (2):    • Photoelectric effect (2)  
3) Photoelectric effect (3):    • Photoelectric effect (3)  
4) Effect of the wavelength on the liberation of electrons-Photoelectric effect-Simulation:    • Effect of the wavelength on the liberation...