Question: 7. This is a question about electromagnetic waves. (a) Starting from Maxwell's equations in a vacuum show that the electric field E and magnetic

7. This is a question about electromagnetic waves. (a) Starting from Maxwell's equations in a vacuum show that the electric field E and magnetic field B obey wave equations and identify the velocity of the resulting waves. Explain each step. (b) Assume that E = Eof (kz-wt) and make use of VE= to find B (c) Describe the resulting pair of waves physically. (d) Describe how dispersion would affect the propagation of this wave in medium.

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