Question #3b811
1 Answer
Jan 30, 2018
The answer is that the light is made likely to undergo total internal reflection as it collided with the low reflective index cladding and stay in the core of the fibre.
Explanation:
A diagram is probably the best explanation:
In fact the website I took this from (hyperphysics) is often my first point of call when searching for brief, clear explanations for teaching.
