What are optical fibres?On which principle do they work?
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Optical Fiber is a wired communication medium. It is made using one or many thin strands of glass or plastic.
Optical Fiber works on the principle of ”Total Internal Reflection” of light. This principle states that, “When a ray of light travelling from an optically rarer medium to a relatively denser medium, is incident upon it with an angle, greater than the critical angle for that pair of medium, the light ray gets totally internally reflected.”
Optical Fiber works on the principle of ”Total Internal Reflection” of light. This principle states that, “When a ray of light travelling from an optically rarer medium to a relatively denser medium, is incident upon it with an angle, greater than the critical angle for that pair of medium, the light ray gets totally internally reflected.”
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The optical fibre is a device which works on the principle of total internal reflection by which light signals can be transmitted from one place to another with a negligible loss of energy. Characteristics of Optical Fibre: It has a large bandwidth.
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