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A light ray is incident perpendicular to one face of a  prism and is totally internally reflected at the glass-air interface. If the angle of reflection is  we conclude that the refractive index

a)

b)

c)

d)


Question ID - 152746 :-

A light ray is incident perpendicular to one face of a  prism and is totally internally reflected at the glass-air interface. If the angle of reflection is  we conclude that the refractive index

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

For total internal reflection from glass-air interface, critical angle  must be less than angle of incidence.



Next Question :

What should be the angle between two plane mirrors so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mirrors be parallel to each other

a)

b)

c)

d)


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