SAT Subject Physics Practice Question 282: Answer and Explanation

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Question: 282

53. In the diagram accompanying each question, representative light rays from an illuminated object (labeled “O” in the diagrams) interact with an optical device (or devices): a mirror, a lens, or a combination of both. In each case, identify the optical device(s)—from among the choices below—that is/are most likely in the dotted box.

A. Plane mirror
B. Converging lens
C. Diverging lens
D. Plane mirror and a converging lens
E. Plane mirror and a diverging lens

Correct Answer: D


Since the rays first reflect then are converged as they exit the box, this ray diagram is consistent with having a plane mirror and then a converging lens within the dotted box.

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