what was einstein’s explanation for the photoelectric effect?

Therefore, light is made up of packets of energy or quantum of energy. These particles consist of higher energy, which is also called the quantum of radiation. However, electron emission was spontaneous no matter how small the intensity of light. Einstein assumed that Planck’s “quantum’ consists of massless particles. You can EXIT to an explanation and demonstration of the photoelectric effect. The photoelectric effect is an important concept that enables us to clearly understand the quantum nature of light and electrons. The photo electric effects was one of the first solid examples of the quantization of light. If the electron gets energy equal to threshold frequency, its kinetic energy becomes zero after coming out of the surface. 2) the set up consist of an evacuated glass tube that has a photosensitive metal plate C and another metal plate A as shown. The photoelectric effect occurs when light of high enough energy strikes an object. Thomas S. Kuhn, Black-Body Theory and the Quantum Discontinuity, 1984-1912 (1978). In 1922 the American physicist Arthur Compton measured the change in wavelength of X-rays after they interacted with free electrons, and he showed that the change could be calculated by treating X-rays as made of photons. It is calculated experimentally using the stopping potential. 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Einstein resolved this problem using Planck’s revolutionary idea that light was a particle. We show that Einstein’s explanation of photoelectric effect is a causal explanation that has clear epistemological advantages with respect to other rival explanations. Scientists couldn't really understand why low-frequency high-intensity light would not cause electrons to be emitted, while higher-frequency low-intensity light would. After continuous research in this field, the explanation for the photoelectric effect was successfully explained by Albert Einstein. The intensity problem According to Einstein’s photon theory, if the intensity of the incident light is increased, the number of … After continuous research in this field, the explanation for the photoelectric effect was successfully explained by Albert Einstein. Be the first to answer! Einstein resolved this problem using Planck’s revolutionary idea that light was a particle. T. Kuhn, 1983). Stay tuned with BYJU’S to learn more about the photoelectric effect along with engaging video lectures. Yet, no one back then could explain the causes behind the photoelectric effect. Since light is bundled up into photons, Einstein theorized that when a photon falls on the surface of a metal, the entire photon’s energy is transferred to the electron. ● Incident radiation of higher frequency makes the electrons vibrate faster, thereby increasing the electron emission. In Einstein's explanation of the photoelectric effect, he guessed that light—electromagnetic waves—can be thought of as being made up of particles he called "photon", with each particle having energy E = h f , where h is Planck's constant ( h = 6.626 × 10 − 34 J ⋅ s ) and f is the frequency of light. Sorry!, This page is not available for now to bookmark. A photon above a threshold frequency has the required energy to eject a single … Einstein formulated an equation, known as Einstein’s Photoelectric Equation, to provide a quantitative explanation for the photoelectric effect: E= hf= ¢+ E k with Ebeing the energy of the photon (thus E= hffrom Planck’s hypothesis),¢the work function of the particular metal (¢= hf 0 ), and E k the photoelectron’s kinetic energy (in Joules or electron volts). a) High-frequency photons contribute energy above the work function energy to the electron's kinetic energy. Sep 13, 2016 - The photoelectric effect occurs when matter emits electrons after exposure to electromagnetic radiation. Einstein Explanation of Photoelectric Effect The strength of the photoelectric current depends upon the intensity of incident radiation, and it should be higher than the threshold frequency. Intensity has no effect on kinetic energy of photoelectrons. 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