Question

for total....occur the light must travel from a dense medium to less dense medium ​

Answer 1

Answer:

Were as if light goes from rarer to denser then angle of refraction will never reach. So in order for total internal reflection to take place; The rays of light must travel from a dense medium to a less dense medium. The angle of incidence must be greater than the critical angle.

Answer 2

Answer:

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Explanation:

Were as if light goes from rarer to denser then angle of refraction will never reach. So in order for total internal reflection to take place; The rays of light must travel from a dense medium to a less dense medium. The angle of incidence must be greater than the critical angle.