Question

An electro-magnetic wave in vacuum has the electric and magnetic fields as $\overline{E}and\overline{B}$ , which are always perpendicular to each other. The direction of polarization is given by $\overline{X}$ and that of the wave propagation as $\overline{k}$. Then

• A. $\overline{X}\perp \overline{B}and\overline{k}\perp \overline{B}\times \overline{E}$
• B. $\overline{X}\perp \overline{E}and\overline{k}\perp \overline{E}\times \overline{B}$
• C. $\overline{X}\perp \overline{B}and\overline{k}\perp \overline{E}\times \overline{B}$
• D. $\overline{X}\perp \overline{E}and\overline{k}\perp \overline{B}\times \overline{E}$

Answer 1

The correct option is C $\overline{X}\perp \overline{B}and\overline{k}\perp \overline{E}\times \overline{B}$

The direction of propagation is perpendicular to the plane containing E and B and direction of Polarization is parallel to B