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 - Exercises - Page 1278: 38.44

Answer

Choice C.

Work Step by Step

The graph shows whether the photon is more likely to interact via the photoelectric effect, or via the Compton effect. At high energies the 4-MeV photon mostly interacts via the Compton effect. As it loses energy it becomes more likely to interact via the photoelectric effect.
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