Question

total internal reflection takes place when the light travels from ______medium​

Answer 1

Answer:

Denser to rarer medium.

Explanation:

Total internal reflection always place when a light ray travels from an optically denser medium to a rarer medium.

For total internal reflection, angle of incidence must be greater than the critical angle,

C=sin

−1

μ

1

where, μ=refractive index of denser medium relative to rarer medium.

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