Question

14. List out the conditions to be satisfied for total internal reflection



When light travels from a denser medium, eg glass, to a less dense medium, eg air, the speed of the light increases and the light refracts away from the normal . The angle of refraction is greater than the angle of incidence
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Answer 1

Answer:

the light must be travelling from a more dense medium into a less dense medium (ie glass to air)

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