If vec{E} and vec{B} are the electric and mag | vedclass

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(C) In an electromagnetic wave,the electric field vector $\vec{E}$ and the magnetic field vector $\vec{B}$ oscillate in phase and are mutually perpend

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parallel to the direction of $\vec{E} 	imes \vec{B}$

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(C) In an electromagnetic wave,the electric field vector $\vec{E}$ and the magnetic field vector $\vec{B}$ oscillate in phase and are mutually perpendicular to each other.According to the properties of electromagnetic waves,the direction of energy propagation (the direction of the Poynting vector $\vec{S}$) is given by the cross product of the electric and magnetic field vectors.Specifically,the direction of propagation is parallel to $\vec{E} 	imes \vec{B}$.Therefore,the correct option is $C$.

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

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