Question

If `E` and `B` represent electric and magnetic field vectors of the electromagnetic wave, the direction of propagation of eletromagnetic wave is along.
A. E
B. B
C. `Bxx E`
D. `Exx B`

Answer 1

Correct Answer - D
The direction of propagation of electromagnetic wave is perpendicular to both electric field vector E and magnetic field vector B i.e., in the direction of `Exx B`
This can be seen by the diagram given below

Here electromagnetic wave is along the z-direction which is given by the cross product of E and B.