Question

The direction of propagation of electromagnetic wave is along

• A. Electric field vector, E
• B. Magnetic field vector, B
• C. E .B
• D. $E\times B$
• E. $B\times E$

Answer 1

Answer: (D)

The direction of propagation of electromagnetic wave is always perpendicular to the plane in which $E$ and $B$ lies.
and, $E\times B=C$