Conceptual Physics (12th Edition)

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

Chapter 31 - Think and Explain: 45

Answer

A photon behaves like a wave when it is traveling from one place to another. It behaves like a particle when it is emitted by an atom, or absorbed by a piece of film or a detector.

Work Step by Step

This is explained on page 590.
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