speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. The definition of produced visible light means when the electromagnets radiation meets the human eye. The first example of produced is a glow stick because it produces its own light . Another example of produced visible light is Fireworks. Also a vapor lamp is a good example of produced light . The definition of reflected means
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exciting electrons‚ causing them to attach to oil. * Using a battery‚ electric voltage was applied to the plates. When just right‚ the electromagnetic force would balance out the force of gravity‚ suspending particles in midair. * Noticed charge was always multiples of 1.6 x 10^19 * Q= mg/E Gold Foil Experiment * Radioactive particles (alpha radiation)
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Flame Tests Atomic Emission and Electron Energy Levels AES‚ or atomic emission spectroscopy‚ is a method which chemically analyzes the particular wavelength of a sample element to identify and determine the abundance of this certain element. The wavelength of the atomic spectral line unveils the identity of the element while the emitted light intensity is proportional to the number of atoms in the element. The flame test is also a very effective way to identify an individual element. The color
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ratio. What happens when an unstable nucleus emits an alpha or beta minus particle? Alpha radiation consists of alpha particles which each comprise of 2 protons and 2 neutrons. Beta radiation consists of fast moving electrons. A beta minus particle is emitted because a neutron is changing into a proton. What is a photon? A photon is a ‘packet’ of quantum of electromagnetic waves. An electromagnetic wave consists of an electric wave and a magnetic wave which travel together and vibrate: *at
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Visible light (commonly referred to simply as light) is electromagnetic radiation that is visible to the human eye‚ and is responsible for the sense of sight. Visible light is usually defined as having a wavelength in the range of 400 nanometres (nm)‚ or 400×10−9 m‚ to 700 nanometres – between the infrared‚ with longer wavelengths and the ultraviolet‚ with shorter wavelengths. These numbers do not represent the absolute limits of human vision‚ but the approximate range within which most people can
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References: 1. Campbell‚ N (1999) Biology‚ Benjamin-Cummings Publ. Co.‚ California [http://biology.clc.uc.edu/courses/bio104/photosyn.htm] 2. Davidson‚ S. (2007) Electromagnetic Radiation‚ Maricopia Education‚ New York‚ http://www.nationalelectrical.com/clncmpd.htm [13/03/2010] 3. Eates‚ P. J. (2004) Electromagnetic Spectrum‚ The Share Guide‚ Sydney‚ [http://www.lbl.gov/] 4. Farabee‚ M (2007) Photosynthesis and Light‚ Maricopia Education‚ New York [http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookps
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About Radiation: Radiation is an energy that is transmitted in the form of waves or tiny particles. These are electromagnetic waves‚ which are classified as ’ionizing radiation’ and ’non ionizing radiation’. Electromagnetic radiation is when an object gives out electromagnetic radiation. For example when you on a torch light‚ the light is an example of radiation. Ionising radiation has more energy than non ionising radiation. Therefore it is enough to cause chemical changes by breaking chemical
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The Photoelectric Effect Definition: It is the emission of electrons from a metal surface under the illumination of a suitable radiation. The photoelectric effect is the phenomenon whereby electrons are emitted from a surface (usually metallic) upon the exposure to and absorption of electromagnetic radiation‚ such as visible light‚ that is above the threshold frequency. This is because electrons cannot get enough energy to overcome their atomic bonding. The photoelectric effect furthered wave
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V.Naga Prathap III B.Tech AEROSPACE DEPARTMENT‚ SRM UNIVERSITY‚ KATTANKULATHUR‚ TAMILNADU 1.snehalakshmirksl@yahoo.in 2. ngprthp81@gmail.com 1. +917845240907 2. +919176796262 ABSTRACT: Every square meter of space receives 1.366KW of solar radiation which is beamed down to earth has been reduced to 250W per square meter due to atmospheric absorption and other factors. This has led to the idea of setting up a space solar power station (SSPS) which can produce energy up to seven times that
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Abstract— the project is enlightening us about the characteristics and properties of electromagnetic wave .It also include radar‚ how does it works‚ its components and application of EM Wave in radar. 1. Electromagnetic Waves Electromagnetic waves are composed of oscillating electric and magnetic fields at right angles to each other and both are perpendicular to the direction of propagation of the wave. Electromagnetic waves differ in wavelength. Fig1. Propagation
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