A magnetic field B1 = 3i + 4j + 5k from the air across the interface between region 2x + 2y + z = 1000 where u1 = 1 and µ2 = 2, Find n12 (refractive index) if (1) K = 0 (2) K = -4i + 5j - 2k %3D Where K is the current sheet.
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