1. Prove that F(k.r - ?t) is thegeneral solution of the Helmholtz wave equation. Here,(k.r - ?t) is the argument of the functionF.

2. Given, E = (1, 2, 0)Eo exp[j(kz - ?t)] as the electrical fieldcomponent of a plane electromagnetic wave, which is a vector. Findthe magnetic field component, H, and prove that ExH is inz-direction.

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