. If the phase velocity of the wave is } \\ 1.5 \times 10^{8} \mathrm{~m} / \mathrm{s} \text { and the relative permeability of the medium is } \end{array}\\ &u_{r}=2.4 . \text { find: } \end{aligned} -) the wavelength, ») the frequency f of the wave, (c) the relative permittivity of the medium, and (d) the magnetic field H(z,t).
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