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UO2 How is electromagnetic wavea sketch of a plane EM wave propagating alonX-axis depictinelectric and magnetic fielg the directions of the oscillatingds.EnergDelhi Comptt. I, II, 111 2017)Energy De |
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Answer» The EM waves are composed of orthogonally propagating E and H fields. At an interface, the boundary conditions are applied: tangential component of field is continuous and the product of normal component of field and magnetic permeability/resistivity is continuous. So, you automatically have the amplitudes of the horizontal and vertical components of fields affected and hence that causes the bending of rays at a discontinuity. |
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