Question

explain how total internal reflection takes place in
Diamond Optical Fibre

Answer 1

light passes slowly from one medium to another si light bends towards the normal so the refraction takes place.

Answer 2

✨ HEY MATE ✨

➡️If the angle of incidence is increased beyond the critical angle, the light rays will be totally reflected back into the incident medium.
➡️ This effect is called total internal reflection. But note that total internal reflection cannot occur if light is traveling from a less dense medium to a denser one.

✌️ I THINK IT HELPED YOU ✌️