Physics
3rd Edition
ISBN: 9780073512150
Author: Alan Giambattista, Betty Richardson, Robert C. Richardson Dr.
Publisher: McGraw-Hill Education
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Chapter 25, Problem 1CQ
To determine
Why two waves of significantly different frequencies cannot be coherent.
Expert Solution & Answer
Answer to Problem 1CQ
The phase relationship is not present with waves of different frequencies, so they cannot be coherent.
Explanation of Solution
The coherent waves will have a definite fixed phase relationship between them. If the frequency of the waves are somewhat identical, there will be a slight phase matching between the waves, and they can be coherent.
The waves given here have very significant difference in their frequencies. This will ensure that the waves will not be coherent. Therefore, the waves of different frequencies do not have phase relationship, they cannot be coherent.
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Chapter 25 Solutions
Physics
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