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Electromagnetic waves are created by a accelerating charge that induces a changing electric field, that induces a changing magnetic field which propagates together through space. The electric and magnetic field are at right angles to each other. Polarisation blocks all but one plane of the transverse wave. Does it block the electric or magnetic field? Or is the transverse wave of light caused by the wave nature of the direction the propagation of the 2 fields (so it is perpendicular to both electric and magnetic fields at all times)? Or am I misunderstanding something?
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