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: 12

Answer

The focal length of a convex lens can be determined by focusing sunlight of distance light source at a point on a surface. The distance between lens and surface will give the focal length. This method does not work on concave lens because it diverges the light rays instead of converging.

Work Step by Step

The focal length of a convex lens can be determined by focusing sunlight of distance light source at a point on a surface. The distance between lens and surface will give the focal length. This method does not work on concave lens because it diverges the light rays instead of converging.
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