Conceptual Physics (12th Edition)

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

Chapter 31 - Reading Check Questions (Comprehension): 7

Answer

Photons of violet light.

Work Step by Step

For photons, E = hf, where E is the energy, h is Planck's constant, and f is the photon's vibrational frequency. Violet light has a higher frequency than red light and is more successful at dislodging electrons. This is discussed on pages 585-587.
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