Q. Which of the following is not due to total internal reflection?
A) Brilliance of diamond
B) Working of optical fibre
C) Difference between apparent and real depth of a pond
D) Mirage on hot summer days
Explanation
[Solution from source] The pond looking shallower than it is comes from ordinary refraction at the water surface, not total internal reflection. Sparkle of diamond, light guidance in optical fibres and mirages all rely on total internal reflection. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.