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But why are so many diagrams incorrect? Have I still misunderstood your explanation?
Thanks for your explanation. I've always understood that the electric sine wave and the magnetic sine wave, though peaking at the same time, vibrate in different planes. One is in the XY plane and the other in the XZ plane. There are any number of diagrams published showing this. Hence my question.If I've understood your reply correctly, both vibrate in the XY plane, either side of the direction of travel along the X axis. This certainly explains polarisation.But why are so many diagrams incorrect? Have I still misunderstood your explanation?
which of its orthogonal electric and magnetic components is eliminated?
[near] the lines of magnetic force produced by magnets ... the plane of polarization is caused to rotate.