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: 71


Yes, but at a different peak frequency.

Work Step by Step

Objects at any temperature greater than absolute zero will emit radiation. The peak frequency of this radiation is proportional to the object's absolute temperature - the hotter the object, the higher the frequency of the peak radiation. The surface of the Earth is mainly at room temperature, and radiates mostly in the infrared portion of the electromagnetic spectrum. The sun is far hotter, and emits much more radiation at every frequency than the Earth does. The peak of the solar radiation lies in the visible part of the spectrum.
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