College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 22 - Reflection and Refraction of Light - Learning Path Questions and Exercises - Multiple Choice Questions - Page 772: 10

Answer

(b) the difference in the speed of light for different wavelengths of light in a given medium

Work Step by Step

Dispersion happens when different components of light splits up due to difference in wavelengths and their speeds in a given medium after refraction. The reason has to do with the fact that in a dispersive medium the speed of light is slightly different for different wavelengths.
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