University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 33 - The Nature and Propagation of Light - Problems - Discussion Questions - Page 1104: Q33.2

Answer

See explanation.

Work Step by Step

On page 1082 it’s explained that when light enters a medium that has a higher index of refraction (e.g., from vacuum to air), it slows down, and the light ray bends toward the normal (for light entering the atmosphere, the normal is a vertical line). As you can see from Figure 33.10, the actual position of the star is lower in the sky than its apparent position.
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