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Optical Fiber

Optical fibre...

Question

Optical fibres transmit light along its axis, by the process of :

A

total internal reflection

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B

refraction

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C

interference

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D

diffraction

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Solution

The correct option is A total internal reflection
The side-wall of optical fibre provides total internal reflection of beam of light incident on it.

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Q. Assertion :Optical fibres make use of total internal reflection. Reason: Light undergoes successive total internal reflections as it moves through an optical fibre.

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