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Sahay Sir > Question Answers > JEE Mains Physics 2002-2019 Solved Video Solutions > Chapter 15 - Electromagnetic Waves > An electromagnetic wave of intensity 50Wm^−(2) enters in a medium of refractive index ‘n’ without any loss .The ratio of the magnitudes of magnetic fields of the wave before and after entering into the medium are respectively, given by:

An electromagnetic wave of intensity 50Wm^−(2) enters in a medium of refractive index ‘n’ without any loss .The ratio of the magnitudes of magnetic fields of the wave before and after entering into the medium are respectively, given by:

In free space the energy of electromagnetic wave in electric field is UE and in magnetic field is UB. Then