University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 38 - Photons: Light Waves Behaving as Particles - Problems - Discussion Questions - Page 1274: Q38.1

Answer

See explanation.

Work Step by Step

Photons carry momentum and energy, just like electrons do, and they are both elementary, meaning they are not made up of other particles. Photons have no mass or charge, but electrons do. Photons cannot be accelerated because they always travel at the speed of light. Electrons can be accelerated.
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