Conceptual Physics (12th Edition)

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

Chapter 36 - Review Check Questions (Comprehension) - Page 698: 8


A lower frequency is measured for the spectral line emitted by the sun.

Work Step by Step

Strong gravitation expands time intervals, i.e., it slows down the passage of time. The gravitational field is about 28 times stronger at the sun's surface than it is on Earth's surface. Atoms at the sun's surface vibrate more slowly and emit light of a lower frequency than corresponding atoms on Earth. This is discussed on page 692.
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