JEE Mains Model Paper 15

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Question : 19 of 90

Marks: +1, -0

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

Optical fibres have extremely low transmission loss
Optical fibres may have homogeneous core with a suitable cladding
Optical fibres can be graded refractive index
Optical fibers are subject to electromagnetic interference from outside

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