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Morning (5) Shown below is a snapshot graph of the magnetic field for an electromagnetic wave at t = 9.39 x 10-1s traveling in the -x-direction. The magnetic field is parallel to the y-axis. (a) Write an equation for the magnetic field as a function of time. (b) Along what axis is this wave polarized? If it is unpolarized, explain how you know it is unpolarized. (c) What is the average magnitude of the Poynting vector? (d) This wave passes through a polarizer whose axis is at an angle of 0 = 57.1° from the y-axis. What is the ratio between the outgoing intensity with the incoming intensity? +B(mT) 0.576 400 800 x(nm) 200 600 -0.576-

Morning (5) Shown below is a snapshot graph of the magnetic field for an electromagnetic wave at t = 9.39 x 10-1s traveling in the -x-direction. The magnetic field is parallel to the y-axis. (a) Write an equation for the magnetic field as a function of time. (b) Along what axis is this wave polarized? If it is unpolarized, explain how you know it is unpolarized. (c) What is the average magnitude of the Poynting vector? (d) This wave passes through a polarizer whose axis is at an angle of 0 = 57.1° from the y-axis. What is the ratio between the outgoing intensity with the incoming intensity? +B(mT) 0.576 400 800 x(nm) 200 600 -0.576-

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Morning (5) Shown below is a snapshot graph of the magnetic field for an electromagnetic wave at t = 9.39 x 10-15s traveling in the -x-direction. The magnetic field is parallel to the y-axis. (a) Write an equation for the magnetic field as a function of time. (b) Along what axis is this wave polarized? If it is unpolarized, explain how you know it is unpolarized. (c) What is the average magnitude of the Poynting vector? (d) This wave passes through a polarizer whose axis is at an angle of 0 = the y-axis. What is the ratio between the outgoing intensity with the incoming intensity? 57.1° from +B(mT) 0.576- 400 800 x(nm) 200 600 -0.576-
Transcribed Image Text:Morning (5) Shown below is a snapshot graph of the magnetic field for an electromagnetic wave at t = 9.39 x 10-15s traveling in the -x-direction. The magnetic field is parallel to the y-axis. (a) Write an equation for the magnetic field as a function of time. (b) Along what axis is this wave polarized? If it is unpolarized, explain how you know it is unpolarized. (c) What is the average magnitude of the Poynting vector? (d) This wave passes through a polarizer whose axis is at an angle of 0 = the y-axis. What is the ratio between the outgoing intensity with the incoming intensity? 57.1° from +B(mT) 0.576- 400 800 x(nm) 200 600 -0.576-
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