Conceptual Physics (12th Edition)

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

Chapter 30 - Reading Check Questions (Comprehension): 17


Ultraviolet light has more energy per photon. The difference in energy of those fluorescent materials corresponds to the energy of a uv photon. Infrared light has insufficient energy to excite electrons in those materials.

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This is discussed on page 570.
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