SAT Subject Physics Practice Question 442: Answer and Explanation

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Question: 442

3. While standing in front of a plane flat mirror and looking at yourself, you raise your right hand. Which is the best description of the image you see?

A. Erect and enlarged
B. Erect and reduced
C. Erect and reversed
D. Inverted and reversed
E. Inverted and reduced

Correct Answer: C


The correct answer is (C). Your image is standing upright. Your feet and the image of your feet are down, and your head and the image of your head are up. When you raise your right hand, the left hand of the image is raised. This is a reversal of left and right.

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