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Violet light of wavelength 400 nm travels through vacuum in the +y direction. At some instant oftime the magnetic field of this wave points in the -z direction at point P. What is the direction of theelectric field of this wave at the same time but at a point 200 nm above (in the +y direction) point P?a) -xb) +xc) -yd) +ye) Some other direction than the choices above
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