Q. 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 subject to electromagnetic interference from outside
D) Optical fibres have extremely low transmission loss
Explanation
The correct answer is Option C: Optical fibres are subject to electromagnetic interference from outside.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.