Consider the telecommunication through optical fibres. Which of the following statements is not true?
A. Optical fibres are subjected to electromagnetic interference from outside.
B. Optical fibres can be of graded refractive index.
C. Optical fibres have extremely low transmission loss.
D. Optical fibres may have homogeneous core with suitable cladding
Answer:A
Consider the telecommunication through optical fibres. Which of the following statements is not true?
A. Optical fibres are subjected to electromagnetic interference from outside. B. Optical fibres can be of graded refractive index. C. Optical fibres have extremely low transmission loss. D. Optical fibres may have homogeneous core with suitable cladding