Communication Systems

2003 Q101 JEE Mains MCQ
10 Mar 2026
Consider telecommunication through optical fibres. Which of the following statements is not true?
A.
Optical fibres can be of graded refractive index
B.
Optical fibres are subject to electromagnetic interference from outside
C.
Optical fibres have extremely low transmission loss
D.
Optical fibres may have homogeneous core with a suitable cladding.