Conceptual Physics (12th Edition)

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

Chapter 26 - Think and Explain: 46

Answer

Use a camera that is sensitive to the infrared part of the spectrum.

Work Step by Step

Even if there is very little light in the visible part of the spectrum, there will be radiation in the IR portion.
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