Verify the equation
Answer to Problem 82P
The equation
Explanation of Solution
Write an expression for average energy density in an EM wave.
Here,
Write dimensional expression for permittivity of free space.
Write dimensional expression for rms energy.
Write dimensional expression for average energy density in an EM wave.
Substitute equation (II) and equation (III) in equation (IV) to find
Write an expression for the intensity.
Here,
Write dimensional expression for intensity.
Write dimensional expression for speed of light.
Substitute equation (V) and equation (VIII) in equation (VII) to find
The dimension of intensity is
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Chapter 22 Solutions
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