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Optical Fiber

In optical fi...

Question

In optical fibres, propagation of light is due to

A

diffraction

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B

total internal reflection

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C

reflection

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D

refraction

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Solution

The correct option is B total internal reflection
Optical fibre is a device which transmits light introduced at one end to the opposite end, with little loss of the light through the sides of the fibre. It is possible with the help of total internal reflection.

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