Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 28 - Reading Check Questions (Comprehension): 25

Answer

A converging lens is thicker in the middle than at the edges, and brings parallel rays to a focus at a point. A diverging lens is thicker at the edges than in the middle, and makes parallel rays diverge. The diverging rays can be extrapolated back to a focal point on the back side of the lens.

Work Step by Step

This is discussed on pages 533-534, and shown in Figure 28.43.
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