College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 23 - Mirrors and Lenses - Learning Path Questions and Exercises - Conceptual Questions - Page 805: 6

Answer

Concave mirror forms real image so when light is incident on mirror from far away it converges at focal point infront of mirror after reflecting from concave surface so we can easily measure the focal length. In case of convex mirror the focal point is behind the mirror so we cannot easily measure its focal length.

Work Step by Step

Concave mirror forms real image so when light is incident on mirror from far away it converges at focal point infront of mirror after reflecting from concave surface so we can easily measure the focal length. In case of convex mirror the focal point is behind the mirror so we cannot easily measure its focal length.
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