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Lens Formula

Light is guid...

Question

Light is guided within the core of a step index fiber by

A

total internal reflection at the core-cladding interface

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B

change in the speed of light within the core

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C

total internal reflection at the outer surface of the cladding

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D

refraction at the core-air interface

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Solution

The correct option is A total internal reflection at the core-cladding interface
b.

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