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