Physics · 2019
JEE Main · 11 January 2019, Shift 1 · Q22
An electromagnetic wave of intensity 50 Wm^-2 enters in a medium of refractive index 'n' without any loss. The ratio of the magnitudes of electric…
An electromagnetic wave of intensity $\displaystyle 50 \mathrm{Wm}^{-2}$ enters in a medium of refractive index 'n' without any loss. The ratio of the magnitudes of electric fields, and the ratio of the magnitudes of magnetic fields of the wave before and after entering into the medium are respectively, given by :
Official answer
(2)
$\displaystyle \left(\sqrt{\mathrm{n}}, \frac{1}{\sqrt{\mathrm{n}}}\right)$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.