Q. Optical fibres are based on the phenomenon of
✅ Correct Answer: (D)
Total Internal Reflection
Explanation: Optical fibers operate based on the principle of total internal reflection phenomenon that occurs at the interface between the core and the cladding provided that the angle of the incident light inside the core is higher than the angle called critical angle.
Explanation by: Jitendra Singh
Optical fibers operate based on the principle of total internal reflection phenomenon that occurs at the interface between the core and the cladding provided that the angle of the incident light inside the core is higher than the angle called critical angle.