Conceptual Physics (12th Edition)

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

Chapter 30 - Think and Explain - Page 579-581: 52


You agree, with reservations.

Work Step by Step

Low-energy infrared photons cannot stimulate the emission of higher-energy visible light photons: that would violate the sacred principle of the conservation of energy. So they cannot cause fluorescence in the same way that ultraviolet photons do. However, perhaps the low-energy infrared photons can excite an electron and cause a fluorescent-like emission of even-lower-frequency radiation, not in the visible spectrum. This is discussed on pages 570-571.
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