Question

what are the conditions for total internal reflection​

Answer 1

Answer:

most important condition

Explanation:

incedent angle must grater than critical angle

Answer 2

Answer:

Explanation:

For total internal reflection to occur, 2 conditions must be met: 1. The index of refraction must decrease across the boundary in the direction of light refraction. 2. The angle of incidence of the light ray must exceed the critical angle of the interface.