JEE Mains 2020 Model Paper 1 New Pattern

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Question : 35 of 75

Marks: +1, -0

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

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

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