Question

Total Internal reflection happens only when light is travelling from an optically denser medium to an optically rarer medium.

• A. True
• B. False

Answer 1

The correct option is A True

For total internal reflection to take place, there are two necessary conditions:

1) The light should travel from an optically denser medium to optically rarer medium.

2) The angle of incidence should be greater than the critical angle.

Hence the given statement is true.