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Consider telecommunication through optic...

Consider telecommunication through optical fibres. Which of the following statements is not true?

A

optical fibers can be of graded refractive index

B

optical fibers are subject are subjected to electro- magnetic interference from outside

C

optical fibers have extremely low transmission loss

D

optical fibers may have homogeneous core with a suitable cladding

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The correct Answer is:
B
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