refer to the following: An electric eld E of a wave with
Chapter 7, Problem 67(choose chapter or problem)
refer to the following: An electric eld E of a wave with constant amplitude A, propagating a distance z, is given bywhere k is the propagation wave number, which is related to the wavelength by and where is the speed of light in a vacuum, and t is time in seconds. Electromagnetic Wave Propagation. Use the cosine difference identity to express the electric eld in terms of both sine and cosine functions. When the quotient of the propagation distance z and the wavelength are equal to an integer, what do you notice?
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