Question
A spherical wave propagates in air in the radial r direction and the polarization is perpendicular to the i direction, as given by equation below (20 points) \vec{E}(r, t)=\frac{400 \pi}{r} \cdot e^{i\left(\omega t-4 \pi * 10^{6} r-0.2 \pi\right) \hat{\theta}}\left(\frac{y}{m}\right) What is the amplitude of this ligh
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