who proposed photon as bundle of light energy
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- Albert Einstein proposed the idea the light exists of quanta of energy that he called photons.
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- Hence he gave de Broglie wavelength of matter wave as l = h / mv h … = Planck's constant mv = momentum of the massive particle. l = de Brolgie wavelength This leads to the concept of momentum of photon though photon does not have any mass. Its rest mass is zero.2 people found this useful. Answer   Assuming you mean that the velocity is 1/9th the speed of light then you need to use the de Broglie equation for the wavelength of a particle, which says … that the wavelength is equal to Planck's constant divided by the momentum.
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How Does Light Travel? Another way that light is said to travel is as particles, or packets of energy. These packets are called photons, which are elementary particles that carry EM force. The concept of photons was developed by Albert Einstein to describe the actions of light that did not follow the convention of waves.
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Wave-Particle Duality The slope of this line was confirm to be Planck's Constant, h = 6.63 x 10-34. Using the graph, we are given the same equation as before: Ek = hv. Since the energy of waves and energy of light do not coincide, we can rule that light is a particle that contains the property of waves.
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Photon In this illustration, one photon (purple) carries a million times the energy of another (yellow). Some theorists predict travel delays for higher-energy photons, which interact more strongly with the proposed frothy nature of space-time. Yet Fermi data on two photons from a gamma-ray burst fail to show this effect, eliminating some approaches to a new theory of gravity.
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- This entry contributed by Leonardo Motta. Ether, or luminiferous Ether, was the hypothetical substance through which electromagnetic waves travel. It was proposed by the greek philosopher Aristotle and used by several optical theories as a way to allow propagation of light, which was believed to be impossible in empty space.
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- Heinrich Hertz discovered photoelectric effect in 1887. Although electrons were not discovered yet, Hertz observed that electric currents were produced upon the incidence of ultraviolet light. By the beginning of the 20th century, physicists confirmed that:
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History of quantum mechanics Then, Albert Einstein in 1905, in order to explain the photoelectric effect previously reported by Heinrich Hertz in 1887, postulated consistently with Max Planck's quantum hypothesis that light itself is made of individual quantum particles, which in 1926 came to be called photons by Gilbert N. Lewis.
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Young's Double Slit Experiment Updated March 01, 2016. Throughout the nineteenth century, physicists had a consensus that light behaved like a wave, in large part thanks to the famous double slit experiment performed by Thomas Young.
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Photon A laser emits photons. Photons (from Greek φως, meaning light), in many atomic models in physics, are particles which transmit light. In other words, light is carried over space by photons. Photon is an elementary particle that is its own antiparticle. In quantum mechanics each photon has a characteristic quantum of energy. Photons have a rest mass of 0 (zero). However, Einstein's theory of relativity says that they do have a certain amount of momentum.
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- In 1678, Dutch physicist, Christiaan Huygens, believed that light was made up of waves vibrating up and down perpendicular to the direction of the light travels, and therefore formulated a way of visualising wave propagation.
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Lab 6 - Quantum States for the Visible Hydrogen Atomic Emission Spectrum High energy photons, like x-rays, have wavelengths of a billionth of a meter or less. Visible photons correspond to a very small part of the electromagnetic spectrum, lying between 400 (violet) and 700 (red) nanometers (1 nm = 10–9 m, or 1 m = 109 nm). In the mid-1920s, Louis DeBroglie proposed a new notion of a wave-particle duality for matter.
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Double-slit experiment A simpler form of the double-slit experiment was performed by Thomas Young in 1801 (well before quantum mechanics). He believed it demonstrated that the wave theory of light was correct, and his experiment is sometimes referred to as Young's experiment or Young's slits.
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The Photoelectric Effect For now, we will use the photon concept to explain the photoelectric effect, much as Einstein did. Figure 2. An EM wave of frequency f is composed of photons, or individual quanta of EM radiation.
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- Electron-Positron Pair Production. When a photon has quantum energy higher than the rest energy of an electron plus a positron, one of the ways such as a photon interacts with matter is by producing an electron-positron pair in the field of nucleus.
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- Electrons with more energy are able to overcome the attraction of the nucleus and inhabit a higher energy level. An electron can store the energy of a photon. Photons are bundles of light energy. When a photon with the right wavelength strikes a pigment, it excites an electron. The electron jumps to a higher energy level. Most of the time, the photoexcited electron only stays at the higher level for a fraction of a second and then drops back down to its ground state.
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- (2.8). and (2.9). Electron-Positron Pair Production. When a photon has quantum energy higher than the rest energy of an electron plus a positron, one of the ways such as a photon interacts with matter is by producing an electron-positron pair in the field of nucleus.
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PL/SQL Expressions and Comparisons Fundamentals of PL/SQL. There are six essentials in painting. The first is called spirit; the second, rhythm; the third, thought; the fourth, scenery; the fifth, the brush; and the last is the ink. The previous chapter provided an overview of PL/SQL. This chapter focuses on the small-scale aspects of the language.
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- Photon energy is the powerful new energy source that will replace electricity in the new millennium. It's a free energy source and nobody can monopolize it. Its outer edge or belt has already reached Earth's atmosphere and is affecting not only Earth but many planets in the solar system.
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Wave-Particle Duality of Light Quantum theory tells us that both light and matter consists of tiny particles which have wavelike properties associated with them. Light is composed of particles called photons, and matter is composed of particles called electrons, protons, neutrons.
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- When a photon has quantum energy higher than the rest energy of an electron plus a positron, one of the ways such as a photon interacts with matter is by producing an electron-positron pair in the field of nucleus.
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Photoelectric effect In 1905, Einstein proposed an explanation of the photoelectric effect using a concept first put forward by Max Planck that light waves consist of tiny bundles or packets of energy known as photons or quanta.
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Photon A photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles). The photon has zero rest mass and always moves at the speed of light within a vacuum.
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10 quick tar command examples to create/extract archives in Linux The tar command can be told to put selected files in an archive or an entire directory. Here are some examples. The following command creates a tar archive using a directory, adding all files in it and sub directories as well.
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Install Vinyl Tile Flooring Step 5. When installing the new underlayment, stagger the seams of the ply panels, and leave a 1/32-inch gap between the panels to allow for expansion. Leave a 1/8-inch gap along the walls. Always use the fasteners and fastening pattern recommended by the vinyl floor and plywood manufacturer.
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Quantum Secrets of Photosynthesis Revealed “We have obtained the first direct evidence that remarkably long-lived wavelike electronic quantum coherence plays an important part in energy transfer processes during photosynthesis,” said Graham Fleming, the principal investigator for the study.