Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 34 - Images - Problems - Page 1039: 22b

Answer

$f=-20cm$

Work Step by Step

According to answer 22a, the mirror is convex. All convex mirrors have negative focal lengths. Therefore, the focal length is $f=-20cm$.
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