![]() The classical sinusoidal plane wave solution of the electromagnetic wave equation for the electric and magnetic fields is (cgs units)Į ( r, t ) = | E | R e. For example, if the electric field vector is vertical (alternately up and down as the wave travels) the radiation is said to be vertically polarized. The orientation of a linearly polarized electromagnetic wave is defined by the direction of the electric field vector. See polarization and plane of polarization for more information. Essentially, light has three basic properties: brightness, color, and polarization state. But it is possible to break it down into relatively easy-to-understand properties. I R y Here, the plane of incidence (z0) is the z x plane of the diagram. Light is an electromagnetic wave governed by Maxwell equations and the mathematics that describe it get complicated quickly. S polarization is the perpendicular polarization, and it sticks up out of the plane of incidence. The term linear polarization (French: polarisation rectiligne) was coined by Augustin-Jean Fresnel in 1822. A key question: which way is the E-field pointing There are two distinct possibilities. In electrodynamics, linear polarization or plane polarization of electromagnetic radiation is a confinement of the electric field vector or magnetic field vector to a given plane along the direction of propagation. A polarizing filter cuts down the reflections (top) and makes it possible to see a photographer through the glass at roughly Brewsters angle although reflections off the back window of the car are not cut because they are less-strongly polarized, according to the Fresnel equations. ( May 2020) ( Learn how and when to remove this template message)ĭiagram of the electric field of a light wave (blue), linear-polarized along a plane (purple line), and consisting of two orthogonal, in-phase components (red and green waves) Question: Problem 31.24 Part A Only 24.0 of the intensity of a polarized light wave passes through a polarizing filter. Please help to improve this article by introducing more precise citations. This problem has been solved Youll get a detailed solution from a subject matter expert that helps you learn core concepts. This article includes a list of general references, but it lacks sufficient corresponding inline citations.
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