[Solved] In which one of the following the phenomenon of total internal reflection of light is used?

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Q.	In which one of the following the phenomenon of total internal reflection of light is used?
A.	Formation of mirage
B.	Working of binoculars
C.	Formation of rainbow
D.	Twinkling of stars
Answer» C. Formation of rainbow
Explanation: When the angle of incidence is greater than the critical angle, no refraction occurs. Instead, the incident beam is reflected, obeying the Law of Reflection. This is called Total internal reflection. In the formation of a rainbow, Total Internal Reflection occurs at the rear of the raindrop - the water-to-air interface.

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