1 Unit – 4 Engineering Physics OPTICS Dr. V.P.N. Padmanaban M.Sc.‚ Ph.D.‚ Associate Professor 1. Interference Interference of light waves is a superposition phenomenon. This phenomenon was first described by Thomas Young in 1801. It provided strong evidence for the wave theory of light. In Young’s interference experiment‚ an incident monochromatic light is diffracted by a slit in the first screen‚ which then acts as a point source of light that emits semicircular wavefronts. It is
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Google Fiber Adam Fleiner NT1110 Friday 6pm Moran Google Fiber is a revolutionary internet and television service. This service could change the way people use internet and watch television drastically. It is only available in a small number of cities as of now; however the company is working on spreading at a steady pace. As of now the total number of cities that may have this service soon is 34. By the end of this year there will be another list of cities to receive this service. Other cable
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FREE SPACE OPTICS NEXT GENERATION COMMUNICATION PRESENTED BY V.LAXMANA VENKATA KUMAR 09PA1A04B6 ABSTRACT: FSO may sound new and experimental but in fact it predates optical fiber and has its roots in wartime efforts to develop secure communication systems that did not require
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In the short story‚ Jeff has to go on a hiking trip with his dad. The only problem was that the hiking trip was to reach town and get help for his brother that stayed back in the camp they were staying at. In this short story‚ Jeff showed his mood as a reluctant yet motivated courageous guy and the author reveals this by setting up a conflict in which Jeff has to express his qualities and act braver than he is in order to find a solution. The author of this story creates a scenery in which it builds
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The Hiking Trip The Hiking Trip is a story about a father and his two sons‚ Jeff and Mark‚ who decide to go on hiking trip near a small town known as Flint. While on the trip‚ Mark falls prey to a snake that bites him on the leg. Mark is able to limp back to the family’s campsite the night of the incident‚ but hours later the pain is too intense and he is not able to move any longer. In order to save his brother‚ Jeff is forced to overcome his fears in two distinct ways. To begin
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c cabHigh Voltage Cables Next Nexans Norway AS Cable installation in Lofoten in 1961 For more than eighty years‚ Nexans Norway AS – formerly Standard Telefon og Kabelfabrik AS (STK) – has been the principal supplier of power cables in Norway. These eight decades have seen enormous development of the country´s hydropower resources. Today‚ Norway´s consumption of electricity per capita is higher than that of any other country in the world. Most of the hydro-electric power stations are
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Optics Lab: Mirrors and Lenses Theodore Gotis Oakton Community College (revised 7/21/11 J) I. Introduction and Objectives II. Equipment Needed Ray Box Concave Lens Compass Plane Mirror Convex Lens Protractor Concave Mirror Prism Ruler Convex Mirror Water Tray III. Theory Ray diagrams Focal length Radius of curvature Law of reflection Snell’s Law (Refraction) Total Internal
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1958 and fabrication of low-loss optical fiber in 1970. When we hear of optical communications we all think of optical fibers‚ what I have for u today is AN OPTICAL COMMUNICATION SYSTEM WITHOUT FIBERS or in other words WIRE FREE OPTICS. Free space optics or FSO –Although it only recently and rather suddenly sprang in to public awareness‚ free space optics is not a new idea. It has roots that 90 back over 30 years-to the era before fiber optic cable became the preferred transport medium for
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jiguparmar.com THE NEED FOR A CABLE TRAY SYSTEM: • • • As technology advances‚ so too does the need for effective support systems. Today‚ plants and buildings are moving more and more towards automation. Requiring complex system of wiring and cable laying. Old methods of cable management become obsolete under these demanding conditions. 1. Regular inspections must be carried out‚ & faults located 2. Many entry/exit points are required 3. New cables may need to be installed‚ and old
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Sometimes in life‚ it’s good to take risks and face your fears. In the short story “The Hiking Trip”‚ the main protagonist Jeff is faced with a dilemma to either cower with discontent or be a hero and save his brother’s life. Since Jeff is young and ignorant‚ he is challenged with an internal conflict that eventually drives him forward with the words of his father as fuel‚ and the external conflict of the ragged environment that he struggles to navigate
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