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An optical fiber is a flexible, transparent fiber made of extruded glass or polymer. It functions as a waveguide to transmit light, wave and  ditgital data . Optical fibers typically include a transparent core surrounded by a transparent layer with a lower index of refraction. Light is contained in the core by  means of total internal reflection and causes the fiber to act as a waveguide. OF is used for microscope and fiberscope to transmit light. They are largely used as a medium in telecommunication. Optical fibers is used as sensors to measure strain, temperature and pressure.
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i want this as a project please,...............
An optic fibers is very thin fibres made of glsss or plastic having radius of one micrometer.because of small radius of fibres light going into it make a nearly glancing incident on wall.all organs in the human body cannot beseen bit with the help of optic finres it is possible.it is also used in the communication purpose.optic fibre is an application of total internal reflection.
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