An EM wave from air enters a medium.The electric fields are
in air and in medium, where the wave number k and frequency ν refer to their values in air. The medium is non-magnetic. If and refer to relative permittivities of air and medium respectively, which of the following options is correct ?
A plane electromagnetic wave of wavelength λ has an intensity I. It is
propagating along the positive Y-direction. The allowed expressions for the electric
and magnetic fields are given by :
A monochromatic beam of light has a frequency Hz and is propagating along the direction It is polarized along the direction. Then acceptable form for the magnetic field is :