Ignoring reflection at the air-water boundary, if the amplitude of a 1 GHz incident wave in air is 20 V/m at the water surface, at what depth will it be down to 1µV/m? The constitutive parameters for seawater are $\mu_r = 1$, $\epsilon_r = 80$ and $\sigma = 1$ (S/m).
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The intrinsic impedance (Z) of a medium is given by the square root of the ratio of the permeability (μ) to the permittivity (ε) of the medium. In this case, the medium is seawater. The permeability of seawater is μ = μ₀ = 4π × 10^(-7) H/m (since seawater is Show more…
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