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 804: 2

Answer

Focal length is the distance of mirror from the point where the parallel rays of light converge after reflecting from mirror. Since in plane mirror the parallel rays of light after reflection from mirror remains parallel and never converges the focal length is infinity for plane mirror. .

Work Step by Step

Focal length is the distance of mirror from the point where the parallel rays of light converge after reflecting from mirror. Since in plane mirror the parallel rays of light after reflection from mirror remains parallel and never converges the focal length is infinity for plane mirror. .
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