Question

with the help of ray diagram explain phenomenon of total internal reflection obtain relation between critical angle and refractive index of medium. draw ray diagram to show how a right angled isosceles prism can be used to (i) deviate the ray through 180° (ii) deviate the ray through 90° (iii) invert the ray​

Answer 1

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Answer 2

Answer:

Total internal reflection happens when a ray of light strikes a medium boundary at an angle greater than particular critical angle.

there are two important condition for TIR to occur.

first like angle of incidence of light ray must exceed the critical angle at the interface.

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