Explanation Given info: The distance of the person from the concave mirror is 30.0 cm and the magnification is 1.50 times. The expression for magnification of the image is, m = − b a Here, a is the distance of the person from the mirror b is the distance of the image from the mirror. Rearrange the above equation for the value of b . b = − m a Substitute 30.0 cm for a and 1.50 for m in the above expression. b = − ( 1.50 ) ( 30.0 cm ) = − 45 cm The expression for the focal length of concave mirror is, 1 f = 1 a + 1 b Here, a is the distance of the object. b is the distance of the image. Rearrange the above equation for the value of f . f = a b a + b Substitute − 45

Bundle: Physics for Scientists and Engineers, Technology Update, 9th Loose-leaf Version + WebAssign Printed Access Card, Multi-Term

9th Edition

ISBN: 9781305714892

Author: Raymond A. Serway, John W. Jewett

Publisher: Cengage Learning

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Chapter 36, Problem 36.6OQ

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Chapter 36 Solutions

Bundle: Physics for Scientists and Engineers, Technology Update, 9th Loose-leaf Version + WebAssign Printed Access Card, Multi-Term

Ch. 36 - You are standing approximately 2 m away from a...Ch. 36 - You wish to start a fire by reflecting sunlight...Ch. 36 - Consider the image in the mirror in Figure 35.14....Ch. 36 - Prob. 36.4QQ Ch. 36 - Prob. 36.5QQ Ch. 36 - What is the focal length of a pane of window...Ch. 36 - A camera can be modeled as a simple converging...Ch. 36 - Two campers wish to start a fire during the day....Ch. 36 - The faceplate of a diving mask can be ground into...Ch. 36 - Lulu looks at her image in a makeup mirror. lt is...

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The focal length of the mirror.

Solution Summary: The author explains that the focal length of the concave mirror is 90.0cm.

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