At this instant, at which of the values of x in the drawing does the instantaneous Poynting vector have its maximum magnitude?

D. x = 0, x = λ/2, and x = λ 87% (47 votes)
A. x = 0 and x = λ only 7% (4 votes)
B. x = λ/4 and x = 3λ/4 only 2% (1 vote)
C. x = λ/2 only 2% (1 vote)
E. none of the above 2% (1 vote)
Other 0% 0 votes

Total Votes: 54

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