Question

The diagram below shows the electric field (E) and magnetic field (B) components of an electromagnetic wave at a certain time and location.

The direction of the propagation of the electromagnetic wave is ______.

पर्याय

• perpendicular to E and B and out of plane of the paper.

• perpendicular to E and B and into the plane of the paper.

• parallel and in the same direction as E.

• parallel and in the same direction as B.

Answer 1

The direction of the propagation of the electromagnetic wave is perpendicular to E and B and out of plane of the paper.

Explanation:

Direction of propagation of the electromagnetic wave is given by `vec"E" xx vec"B"`. Here `vec"B"` is along the +X axis. `vec"E"` is along the -Y axis. So, applying the right-hand rule, the propagation of the electromagnetic wave is perpendicular to `vec"E"` and `vec"B"` and out of plane of the paper.