JEE Main 2003Annual, Paper 1PhysicsEasyCommunication Systems79× since 2003Consider telecommunication through optical fibres. Which of the following statements is not true?AOption A. Optical fibres can be of graded refractive indexBOption B. Optical fibres are subject to electromagnetic interference from outsideCOption C. Optical fibres have extremely low transmission lossDOption D. Optical fibres may have homogeneous core with a suitable cladding.CheckSkip · show solution
