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Questions  

In total internal reflection when the angle of incidence is equal to the critical angle for the pair of media in contact, what will be angle of refraction?

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By Expert Faculty of Sri Chaitanya
a
90°
b
180°
c
d
equal to angle of incidence

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detailed solution

Correct option is A

When the angle of refraction is equal to 90°, the angle of incidence is called the critical angle.
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A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is c. The maximum possible deviation of the ray will be

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