MEDIUM
JEE Main/Advance
IMPORTANT
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An EM wave from air enters a medium. The electric fields  are in E1=E01x^cos2πvzct air and E2=E02.x^cosk2z-ct in medium, when the wave number k and frequency v refer to their values in air. The medium is non-magnetic. If r1 are r2 refer to relative permittivity of air and medium respectively, which of the following options is correct?

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Important Questions on Electromagnetic Waves

HARD
JEE Main/Advance
IMPORTANT
A plane polarized monochromatic EM wave is travelling in vacuum along z direction such that at t=t1 it is found that the electric field is zero at a spatial point z1. The next zero that occurs in its neighbourhood is at z2. The frequency of the electromagnetic wave is
MEDIUM
JEE Main/Advance
IMPORTANT
A monochromatic beam of light has a frequency v=32π×1012 Hz and is propagating along the direction i^+j^2. It is polarized along the k^ direction. The acceptable form for the magnetic field is
HARD
JEE Main/Advance
IMPORTANT
An electromagnetic wave of wavelength λ has an intensity I.The wave is propagating along the positive Y-direction. The allowed expressions for the electric and magnetic fields are given by.