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Two circularly polarized waves traveling normally out of the page have electric fields given by Eleft = 3 et of and Eright = 4 ei t volt / meter. For the resultant wave, find the sense of rotation, axial ratio, y, ɛ, T, 6, and the average power per unit area conveyed by the resultant wave. |
| Answer» <html><body><p><strong>Answer:</strong></p><p>The electric field vectors of a traveling circularly polarized electromagnetic wave. This wave is right-circularly-polarized, since the direction of rotation of the vector is related by the right-hand rule to the direction the wave is moving; or left-circularly-polarized according to alternative convention.</p><p></p><p>In electrodynamics, <a href="https://interviewquestions.tuteehub.com/tag/circular-916697" style="font-weight:bold;" target="_blank" title="Click to know more about CIRCULAR">CIRCULAR</a> polarization of an electromagnetic wave is a polarization state in which, at each point, the electromagnetic field of the wave has a constant <a href="https://interviewquestions.tuteehub.com/tag/magnitude-1083080" style="font-weight:bold;" target="_blank" title="Click to know more about MAGNITUDE">MAGNITUDE</a> but its direction rotates at a constant rate in a plane perpendicular to the direction of the wave.</p><p>In electrodynamics the strength and direction of an electric field is defined by its electric field vector. In the case of a circularly polarized wave, as seen in the accompanying animation, the tip of the electric field vector, at a given point in space, describes a circle as time progresses. At any <a href="https://interviewquestions.tuteehub.com/tag/instant-1046099" style="font-weight:bold;" target="_blank" title="Click to know more about INSTANT">INSTANT</a> of time, the electric field vector of the wave indicates a point on a helix oriented along the direction of propagation. A circularly polarized wave can rotate in one of two possible senses: right circular polarization in which the electric field vector rotates in a right-hand sense with respect to the direction of propagation, and left circular polarization in which the vector rotates in a left-hand sense.</p><p>Circular polarization is a <a href="https://interviewquestions.tuteehub.com/tag/limiting-2791961" style="font-weight:bold;" target="_blank" title="Click to know more about LIMITING">LIMITING</a> case of the more <a href="https://interviewquestions.tuteehub.com/tag/general-471730" style="font-weight:bold;" target="_blank" title="Click to know more about GENERAL">GENERAL</a> condition of elliptical polarization. The other special case is the easier-to-understand linear polarization.</p><p>The phenomenon of polarization arises as a consequence of the fact that light behaves as a two-dimensional transverse wave.</p><p></p><p></p></body></html> | |