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An isosceles prism has one of the refrac...

An isosceles prism has one of the refracting surfaces silvered. A ray of light is incident normally on the refracting face AB. After two reflections, the ray emerges from the base of the prism perpendicular to it. Find the angle of the prism.

A

`30^(@)`

B

`36^(@)`

C

`18^(@)`

D

`72^(@)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-GEOMETRICAL OPTICS-LECTURE SHEET (EXERCISE II LEVEL -II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  15. A cubic container is filled with a liquid whose refractive index incre...

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  17. A light ray is incident upon a prism in minimum deviation position and...

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  18. A ray of light strikes a plane mirror at an angle of incidence 45^@ as...

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  19. The xz plane separates two media A and B with refractive indices mu(1)...

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