Question

state the condition required for total interal reflection of light to take place​

Answer 1

.conditions for the total internal reflection to take place:

The angle of incidence in the denser medium must be greater than the critical angle for that pair of media.

The ray of light must travel from a denser medium into a rarer medium.

The critical angle is that angle of incidence in a denser medium, for which the angle of refraction in the rarer medium is 90 °.

Answer 2

Answer:

1.light must go through denser medium to rarer medium

2.the angle of incidence must be greater than the critical angle.