Physics Review Question Unit: optics Year: 1995 Question#: 90 Question: In the diagram below, a lamp 0.4 meter tall is placed 0.6 meter in front of a convex mirror. Which diagram best represents an image of the lamp that could be formed by this mirror? (1 ) 0.2 m tall (2 ) 0.4 m tall (3 ) 0.5 m tall (4 ) 0.6 m tall What is this question really asking? Explanation by: Chuck [ Return to question menu ] Answer 1 0.2 m tall Correct. A convex mirror produces a smaller image. Consider a security mirror in a convience store. That is a convex mirror. It shrinks a picture of the whole store onto the mirror. return to top Answer 2 0.4 m tall Incorrect. This answer is inconsistent with the properties of a convex mirror. This image would come from a flat mirror. return to top Answer 3 0.5 m tall Incorrect. This answer is inconsistent with the properties of a convex mirror. This image could come from a concave mirror. return to top Answer 4 0.6 m tall Incorrect. This answer is inconsistent with the properties of a convex mirror. This image could come from a concave mirror. return to top What's this question really asking? What type of image does a convex mirror produce? return to top |
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