What is an optical fiber? Give the basic principles of light guidance through the optical fiber. Derive an expression for numerical aperture of an optical fiber.
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Optical fibre is made up of plastic and glass and is used to transmits signals in form of light or optics whereas coaxial cable is made using plastic and copper wires and is used to transmits signals in form of electric signals. The following are some of the important differences between Optical fibre and Coaxial cable.
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