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Question
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 the Figure Which of the following could be inside the box?
Options
A rectangular glass slab
A convex lens
A concave lens
A prism
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Solution
A rectangular glass slab
Explanation -
In the given situation, the incident ray and the emergent ray are parallel to each other. It is possible only in the case of rectangular glass slab.
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