When an electromagnetic wave travels fromone medium to another with a different speed of propagation, thefrequency of the wave remains the same. Its wavelength, however,changes. (a) If the wave speed decreases, does the wavelength increase or decrease? Explain. (b) Consider a case where the wave speeddecreases from c to 34c. By what factor does the wavelength change?
When an electromagnetic wave travels fromone medium to another with a different speed of propagation, thefrequency of the wave remains the same. Its wavelength, however,changes. (a) If the wave speed decreases, does the wavelength increase or decrease? Explain. (b) Consider a case where the wave speeddecreases from c to 34c. By what factor does the wavelength change?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter34: Maxwell’s Equations And Electromagnetic Waves
Section: Chapter Questions
Problem 32PQ
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Question
When an
one medium to another with a different speed of propagation, the
frequency of the wave remains the same. Its wavelength, however,
changes. (a) If the wave speed decreases, does the wavelength increase or decrease? Explain. (b) Consider a case where the wave speed
decreases from c to 3
4c. By what factor does the wavelength change?
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