$P=\left(\frac{E}{2 R}\right)^2 R$
$P=\frac{E^2}{4 R}$
When $K$ is closed
$i=\frac{2 E}{3 R}$
$P^{\prime}=\frac{E^2}{9 R^2} \cdot R$
$P^{\prime}=\frac{E^2}{9 R}$
$\frac{P}{P^{\prime}}=\frac{9}{4}$
$P^{\prime}=\frac{4 P}{9}$
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Statement $I$ : A time varying electric field is a source of changing magnetic field and vice-versa. Thus a disturbance in electric or magnetic field creates $EM$ waves.
Statement $II$ : In a material medium. The $EM$ wave travels with speed $v =\frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}}$.
In the light of the above statements, choose the correct answer from the options given below
