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Beams of light are incident through the ...

Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in Figure. Which of the following could be inside the box ?

A

A rectangular glass slab

B

A convex lens

C

A concave lens

D

A prism

Text Solution

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The correct Answer is:
A
In the given figure, emergent light rays are parallel to the direction of incident light rays. Out of the given options only a rectangular glass slab can change the path of light ray in such a way that emergent rays are parallel to the incident rays.
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