Q. Pick out the correct statements about optical fibres from the following S1 : Optical fibres are used for the transmission of optical signals only S2 : Optical fibres are used for transmitting and receiving electrical signals S3 : The intensity of light signals sent through optical fibres suffer very small loss S4 : Optical fibres effectively employ the principle of multiple total internal reflections S5 : Optical fibres are glass fibres coated with a thin layer of a material with lower refractive index
A) S1 and S2
B) S2 and S3
C) S3 and S4
D) S2, S3, S4 and S5
Explanation
The correct answer is Option D: S2, S3, S4 and S5.
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.