Q. What happens inside optical fibre?
A) Diffraction
B) Polarization
C) Interference
D) Total internal reflection
Explanation
(d) An optical fibre is a device based on total internal reflection by which at light signal can be transferred from one place to the other with a negligible loss of energy.
[image:15_image3.emf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.