The photoelectric effect is the emission of electrons or other free carriers when light shines on a material. Electrons emitted in this manner can be called photo electrons.This phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.. According to classical electromagnetic theory, this effect can be attributed to Photoelectric effect was discovered by Heinrich Hertz in 1887. Photoelectric effect is a phenomenon in which electrons are emitted from the surface of a substance when certain electromagnetic radiation falls on it. Metal surfaces require ultra-violet radiation while caesium oxide needs a visible light i.E. Optical spectrum (sunlight).
The photoelectric effect is a phenomenon where electrons are emitted from the metal surface when the light of sufficient frequency is incident upon. The concept of the photoelectric effect was first documented in 1887 by Heinrich Hertz and later by Lenard in 1902. But both the observations of the photoelectric effect could not be explained by The Photoelectric Effect In 1887 German physicist Heinrich Hertz discovered that electric charge is emitted from the surface of a metal body when illuminated with ultraviolet light. More careful investigation showed that electromagnetic radiation is able to release electrons from the surface of a metal. This phenomenon is now known as the
Einstein saw that his new idea would provide a natural explanation of the photoelectric effect, i.E. The emission of electrons from metal surfaces illuminated by light. The wave theory of light was quite unable to do so. The motivation for the Nobel Prize to Einstein in 1922 was based on his discovery of the law of the photoelectric effect. As Lenard discovered, a substance will only show a photoelectric effect if the frequency of the light is above a certain minimum value, f o. Emission of Photoelectrons . Set up the simulation for any metal so that a sufficient frequency and voltage allows photoelectrons to complete the circuit. 5.
For this "photoelectric effect" to occur, the light waves must be above a certain frequency, however. According to physics theory, the light's intensity should be critical. In one of several epoch-making studies beginning in 1905, Albert Einstein explained that light consists of quanta - "packets" with fixed energies corresponding to certain
Photoelectric effect is often synonymous with surface photoelectric effect, "the release of electrons by light at the boundary between a solid or liquid . . . And usually a gas" (Hughes and Dubridge 1932). The photoelectric effect was discovered in 1887 by Heinrich Hertz. The fundamental law of photoelectricity is …