JEE PHYSICS MCQ: ELECTROMAGNETIC WAVES

Option A ($\mathrm{I}=\mathrm{c} \mu_0 \mathrm{~B}_0^2 / 2$) is incorrect. Option C ($\mathrm{I}=\mathrm{B}_0^2 / \mathrm{c} \mu_0$) is incorrect. Option D ($\mathrm{I}=\mathrm{E}_0^2 / 2 \mathrm{c} \varepsilon_0$) is incorrect. Option B ($\mathrm{I}=\mathrm{c} \varepsilon_0 \mathrm{~B}_0^2 / 2$) is correct because it represents the average intensity of an electromagnetic wave in terms of the speed of light, permittivity, and magnetic field amplitude.