if `vecE=E_(0)cos(kz)cos(omegat)hati` then `vec(B)` for electromagentic wave is

Options

A. The associted magnetic field is given as
`B = 1/(c) (E_(1)hati - E_(2)hatj) cos(kz - omegat)`
B. The associated magnetic field is given as
`B = 1/c (E_(1)hati - E_(2)hatj) cos (kz - omegat)`
C. The given electromagnetic field is circularly polarised.
D. The given electromagnetic wave is plane polarised.

Answer

D

Explanation

Here, in electromagnetic wave, the elctric field vector is given as `E = (E_(1)hati + E_(2)hatj) cos (kz - omegat)`
Also E and B perpendicular to each other and the propagation of electromgnetic wave is perpendicular to E as well as B, so the given electromagnetic wave is plane polarised.