A beam of parallel light rays is incident through the holes on one side of a box and emerges out through the holes on its opposite side as shown in the diagram below
Figure
Which of the following could be inside the box?
(a) a rectangular glass block
(b) a concave lens
(c) a convex lens
(d) a glass prism
Answers
Answer:
(c) a convex lens is correct
Explanation:
When rays of lights parallel to each other as well as the principal axis comes from infinity passes through the convex lens, then they converge after passing through the lens following the law of refraction the incident rays passes through the lens which as a result gets refracted and meet at a point F i.e., focus on another side i.e., the right side of the lens. So, after observing the above diagram, a convex lens could be inside the box when a beam of parallel light rays is incident through the holes on one side and emerges out in opposite side.
You can get all the answers of Chapter 5 in the link below:
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