The Definition of Photo electric effect given in above article. The phenomenon of emission of electrons from a metallic surface by the incidence of light (photons) is known as photoelectric effect. The emitted electrons are called photoelectrons. The below picture …
Hertz, in 1887 discovered the phenomena of photoelectric effect for the first time. He was experimenting on the generation of electromagnetic waves by spark discharge and he noticed that sparks around the detector loop were intensified when ultraviolet radiation fell …
Einstein gave an explanation for photoelectric emission based on the Planck’s quantum theory of light. When light of certain frequency (greater than threshold frequency) incidents on a metallic surface the energy on incident photon (hf) is: Partly used to eject …