pe23f08 - Last updated: November 12, 2008 PHY 2054...

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Last updated: November 12, 2008 PHY 2054 Discussion – Fall ‘08 Practice Exam Problems (Chapter 23) 1. The lateral magnification for a flat mirror: (Properties of Flat Mirrors) a. is a function of the object distance. B. is a function of the image distance c. is a function of the object and image distance d. is 1 2. How large should a wall-mounted mirror be to view the upper half of ones height, h ? (Required Length of Flat mirrors) a. h b. h /2 c. h /4 d. The answer is not given. 3. A girl standing in front of a concave mirror. Consider two rays of light, one from her nose and one from her mouth that are parallel to the principal axis as they are traveling toward the mirror. These rays will come together: (Ray Diagram) a. at the focal point b. at the center of curvature. C. at the image point. D. behind the mirror if she is too close to the mirror. 4. A candle is 49.0 cm in front of a convex spherical mirror of radius of curvature 70.0 cm. What are the image distance and the magnification, respectively? (Convex Mirror) a. -20.4 cm, +0.417
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pe23f08 - Last updated: November 12, 2008 PHY 2054...

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