Question

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 . Which of the following could be inside the box?


(a) Concave lens

(b) Rectangular glass slab

(c) Prism

(d) Convex lens


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Answer 1

Answer:

Answer is concave lens because incident rays are parallel and emergent rays are diverging.

Answer 2

(a) $\large\bf\purple{Concave\:\:lens}$

$\large\bf\red{Explanation✓}$

Because incident rays are parallel and emergent rays are diverging.