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A beam of light is incident through the ...

A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as shown in Figure. Which of the following could be inside the box ?

A

Concave lens

B

Rectangular glass slab

C

Prism

D

Convex lens

Text Solution

Verified by Experts

The correct Answer is:
D
Since in the diagram all the parallel rays converge at a point. So inside the box there will be a convex lens.
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