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Obtain Eq. 9.20 directly from the wave equation, by

Introduction to Electrodynamics | 4th Edition | ISBN: 9780321856562 | Authors: David J. Griffiths ISBN: 9780321856562 45

Solution for problem 4P Chapter 9

Introduction to Electrodynamics | 4th Edition

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Introduction to Electrodynamics | 4th Edition | ISBN: 9780321856562 | Authors: David J. Griffiths

Introduction to Electrodynamics | 4th Edition

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Problem 4P

Obtain Eq. 9.20 directly from the wave equation, by separation of variables.

Equation 9.20

Step-by-Step Solution:

Step 1</p>

In this problem, we have to find the wave equation for the given variable.

Step 2</p>

The wave equation says  look for solution of the form  where

Now by dividing  we get  where left side is  and right side is  and hence both must be constant. The constant .

Since k is real or positive.

Step 3 of 4

Chapter 9, Problem 4P is Solved
Step 4 of 4

Textbook: Introduction to Electrodynamics
Edition: 4
Author: David J. Griffiths
ISBN: 9780321856562

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Obtain Eq. 9.20 directly from the wave equation, by

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