A beam of light is incident through the holes
Question:

A beam of light is incident through the holes on side A and emerges out of the holes on the other side of the box as shown in figure. Which of the

following could be inside the box ?

(a) Concave lens

(b) Rectangular slab

(c) prism

(d) Convex lens

Solution:

(d).

Explanation:

 

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