For a Certain Electromagnetic Wave in a Vacuum,at One Instant $\vec { E }$

question 68

Multiple Choice

For a certain electromagnetic wave in a vacuum,at one instant the $\vec { E }$ field vector points in the +z direction while the $\vec { B }$ field vector points in the +x direction,as shown in the figure.In what direction is this wave traveling?

• A)+x
• B)-x
• C)+y
• D)-y
• E)+z

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