Q1. What is the photoelectric effect? State the result of a photoelectric effect experiment that could not be explained on the basis of laws of classical physics. Explain this effect on the basis of quantum theory of electromagnetic radiation.
The photoelectric effect occurs when certain metals are exposed to a light beam, causing electrons to be ejected from the metal. This is known as the photoelectric effect. The ejected electrons are known as photoelectrons.  This experiment yielded the following results: Electrons are ejected from the metal surface only when a light beam strikes it. The number of electrons that make up the intensity of radiation. There is a minimum frequency, v0, for each metal below which the photoelectric effect is not observed. K.E. of electrons α frequency of light. Explanation of the photoelectric effect based on quantum theory: When a sufficiently energetic photon collides with an electron in a metal atom, the photon transfers its energy to the electron, and the electron is ejected without delay. The higher the energy of the photon, the higher the kinetic energy of the ejected electron.
The process in which electrons are emitted through a metal rod
