Science Refraction Activity 1.5 - Total Internal Reflection (Naveena Menon)

Total internal reflection: When light is incident upon a medium of lesser index of refraction, the ray is bent away from the normal, so the exit angle is greater than the incident angle. Such reflection is commonly called "internal reflection". One example of total internal reflection is the total internal reflection in a diamond.

Application: Optical fibers
Optical fibres are flexible, transparent fiber made of very pure glass.


Fibre optics communication permits the transmission over longer distances and at higher bandwidths than other forms of communication.


Fibers are used instead of metal wires because:
1. Signals travel along them with less loss
2. Immune to electromagnetic interference