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8.Electromagnetic waves
medium
In the $EM$ wave the amplitude of magnetic field $H_0$ and the amplitude of electric field $E_o$ at any place are related as
A
${H_o} = {E_o}$
B
${H_o} = \frac{{{E_o}}}{C}$
C
${H_o} = {E_o}\,\sqrt {\frac{{{\mu _o}}}{{{\varepsilon _o}}}} $
D
${H_o} = {E_o}\,\sqrt {\frac{{{\varepsilon _o}}}{{{\mu _o}}}} $
Solution
$\frac{E_0}{B_1}=c=\frac{1}{\sqrt{\mu_0^2 \varepsilon_0}}$
$H_0=\sqrt{\mu_0 \varepsilon_0} . E_0$
Standard 12
Physics
