University Physics with Modern Physics (14th Edition)
14th Edition
ISBN: 9780321973610
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Chapter 33, Problem 33.19DQ
In Fig. 33.31, since the light that is scattered out of the incident beam is polarized, why is the transmitted beam not also partially polarized?
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Chapter 33 Solutions
University Physics with Modern Physics (14th Edition)
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- Three polarizing sheets are placed together such that the transmission axis of the second sheet is oriented at 25.0° to the axis of the first, whereas the transmission axis of the third sheet is oriented at 40.0° (in the same sense) to the axis of the first. What fraction of an intensity of an incident unpolarized beam is transmitted by the combination?arrow_forwardA linearly polarized microwave of wavelength 1.50 cm is directed along the positive x axis. The electric field vector has a maximum value of 175 V/m and vibrates in the xy plane. Assuming the magnetic field component of the wave can be written in the form B = Bmax sin (kx t), give values for (a) Bmax, (b) k, and (c) . (d) Determine in which plane the magnetic field vector vibrates. (e) Calculate the average value of the Poynting vector for this wave. (f) If this wave were directed at normal incidence onto a perfectly reflecting sheet, what radiation pressure would it exert? (g) What acceleration would be imparted to a 500-g sheet (perfectly reflecting and at normal incidence) with dimensions of 1.00 m 0.750 m?arrow_forwardIn Figure P37.52, suppose the transmission axes of the left and right polarizing disks are perpendicular to each other. Also, let the center disk be rotated on the common axis with an angular speed . Show that if unpolarized light is incident on the left disk with an intensity Imax, the intensity of the beam emerging from the right disk is I=116Imax(1cos4t) This result means that the intensity of the emerging beam is modulated at a rate four times the rate of rotation of the center disk. Suggestion: Use the trigonometric identities cos2=12(1+cos2) and sin2=12(1cos2). Figure P37.52arrow_forward
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- What is the physical significance of the Poynting vector?arrow_forwardA beam of light, intensity Io, is linearly polarized by a polarizing filter oriented vertically, after which its intensity is halved. At what angle should you orient the next polarizing filter (called an analyzer) so that the outgoing light has intensity Io/5?arrow_forwardGiven that 100 W/m? of a randomly polarized (unpolarized) light is incident normally on a stack of ideal linear polarizers that are positioned one behind the other with the transmission axis of the first vertical, the second at 30° from the vertical, the third at 60° from the vertical and the fourth at 90° from the vertical axis. How much light emerges after each polarizer?arrow_forward
- An unpolarized beam of light with an intensity of 5000 W/m2 is incident on two ideal polarizing sheets. If the emerging light has an intensity 0.200 times the original intensity of the incident beam, what is the angle between the two polarizers?arrow_forwardIf a light beam of intensity I0 that is linearly polarized along the +z-axis is incident on P1, what is the intensity of the transmitted light after it passes through all the polarizers?arrow_forwardIn the figure, initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of θ1 = 55°, θ2 = 19°, and θ3 = 47° with the direction of the y axis. What percentage of the light's initial intensity is transmitted by the system?arrow_forward
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