Q6 of 38 Page 79

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 Figure10.3. Which of the following could be inside the box?

Since the emergent rays are parallel to the incident rays direction and we know that out of convex lens, concave lens, prism and rectangular glass slab, only glass slab can change the light ray path so that emergent rays are parallel to incident rays. Therefore, correct answer is a rectangular glass slab.

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(a)


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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 the Figure 10.4. Which of the following could be inside the box?

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