Answer:
(C) Total internal reflection
Explanation:
Total internal reflection :
- It is the complete reflection of light in the medium ( medium may be glass ,water etc ) from the surrounding surface.
- Total internal reflection occur when angle of incidence is greater than the limiting angle ( limiting angle is also known as critical angle ).
- Light can be transmitted through long fiber optic due to total internal reflection
So the option (c) is the correct option
