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(C) The electric field and the magnetic field of an electromagnetic wave are mutually perpendicular to each other.The direction of propagation of an e

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$\vec{E} 	imes \vec{B}$

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(C) The electric field and the magnetic field of an electromagnetic wave are mutually perpendicular to each other.The direction of propagation of an electromagnetic wave is always perpendicular to both the electric field vector $\vec{E}$ and the magnetic field vector $\vec{B}$.According to the properties of electromagnetic waves,the direction of propagation is given by the direction of the Poynting vector,which is proportional to $\vec{E} 	imes \vec{B}$.Therefore,the direction of propagation is along $\vec{E} 	imes \vec{B}$.

If $\vec{E}$ and $\vec{B}$ are the electric field and magnetic field vectors of an electromagnetic wave respectively,then what is the direction of propagation of the electromagnetic wave?

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