Answer
Ultraviolet light, in both cases.
Work Step by Step
UV light has a higher frequency and a shorter wavelength than infrared light.
Smaller frequencies correspond to longer wavelengths.
This is shown on page 489-490, and in Figure 26.3.
Conceptual Physics (12th Edition)
by Hewitt, Paul G.
Published by
Addison-Wesley
ISBN 10:
0321909100
ISBN 13:
978-0-32190-910-7
Chapter 26 - Think and Explain - Page 501-502: 45
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