3 (a) Figure 33-27 shows light reaching a polarizing sheet whose polarizing di- rection is parallel to a y axis. We shall rotate the sheet 40° clockwise about the -X- light's indicated line of travel. During this rotation, does the fraction of the initial light intensity passed by the sheet increase, decrease, or remain the same if the light is (a) initially unpolarized, (b) initially polarized parallel to the x Figure 33-27 Question 3. axis, and (c) initially polarized parallel to the y axis?

3 (a) Figure 33-27 shows light reaching a polarizing sheet whose polarizing di- rection is parallel to a y axis. We shall rotate the sheet 40° clockwise about the -X- light's indicated line of travel. During this rotation, does the fraction of the initial light intensity passed by the sheet increase, decrease, or remain the same if the light is (a) initially unpolarized, (b) initially polarized parallel to the x Figure 33-27 Question 3. axis, and (c) initially polarized parallel to the y axis?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Polarizers are used in LCDs screens (monitor, tv, etc.) to enhance its color and decrease its backlight. What do you think will happen if these polarizers were removed? (a) Will you still be able to see what the screen displays? (b)If you were going placed back the polarizer but 45° away from what it was, how much (in percent) of the initial intensity of light will pass thru the polarizer?
A system of three polarizing sheets is placed in the path of initially unpolarized light. The polarizing direction of the first sheet, P1, is parallel to the y-axis, that of the second sheet, P2, is 60o counterclockwise from the y-axis, and that of the third sheet, P3, is parallel to the x-axis. Determine the fraction of the initial intensity Io of the light emerges from the system, i.e. ratio I0/I3. A. 0.092 B. 3.19 C. 10.9 D. 6.66
Three polarizing filters are arranged in such a way that the axis of the transmission of the second filter is 10 degress with respect to the first filter. The third filter's axis is 20 degrees with respect to the second filter. Find the intensity of a light after passing from the second filter that has an original intensity of 10 W/m^2. Assume that the first polarizer is an ideal polarizer.
Suppose the incident beam of as the transmission axis of the light is linearly polarized in the same direction analyzer. The transmission axis of the polarizer remains vertical (a) What value must have if the transmitted intensity is to be 0 200/0?
76 Go In Fig. 33-66, unpolarized light with an intensity of 25 W/m2 is sent into a system of four polarizing sheets with polarizing directions at angles = 40°, 2 - 20°, 0 = 20°, and 04 = 30°. What is the intensity of the light that emerges from the system? Figure 33-65 Pr %3! -X-
Axis Sample Problem: An unpolarized light with an intensity of 100 W/m? passes through two polarizing filters that are oriented at an angle of 40° to each other. What is the intensity of the light that emerges from each Axis Unpolarized light other? Polarized light Given: Solution: 1, = 100 W/m? 1= % lo l = ½ (100) h = 50 W/m? 2 = Iocos20 2 = (50) cos?(40) = (50)(0.77)? = (50)(0.59) 2= 29.5 W/m? Polarizer Analyzer e = 40° %3D Figure 1. When unpolarized light is incident on the first polarizer the intensity of the transmitted light is exactly half (50%) no matter how the polarizing axis is oriented. The brightness of the polarized light decreases as the angle, e, increases between the transmission axis of the second polarizer and the plane of polarization of the light. ACTIVITY: Calculate the following problems using Malus' Law. 1. A beam of unpolarized light with an intensity of 75 W/m? passes through two polarizing filters that are 55° with respect to each other. What is the intensity…
A beam of polarized light passes through a polarizing filter.When the angle between the polarizing axis of the filter and the direction of polarization of the light is 45∘, the intensity of the emergingbeam is ?. If you now want the intensity to be 1.5?, what should be theangle between the polarizing axis of the filter and the original directionof polarization of the light?
A solar sail 32.5 m2 in area and made of an absorptive material is orbiting the Sun in space. The Sun light normally incident on the solar sail exerts a radiation pressure of 3.22E-6 N/m2 on it. If the material is replaced with a reflective material that can complete reflect the Sun light, what will the radiation pressure become (in N/m2)?
Three polarizing plates are stacked. The first and third plate are orthogonal to one another and the plate in between has its axis oriented at 45° to the axes of the other two. (a) If the intensity of unpolarized light that arrives at the first plate is lo, what is the intensity transmitted by the stack? (b) What angle should you rotate this middle plate to ensure maximum transmission of light through the stack?
The ratio If/lo is maximized when polarizer X is rotated so its polarization axis is 45° different from that of polarizer A (that is, when OAx is 45°). What is this maximum intensity ratio?
When linearly polarized light passes through a polarizer, its polarizing axis may be rotated by any angle ϕ < 90° at the expense of a loss of intensity, as determined by Malus’s law. By using sequential polarizers, you can achieve a similar axis rotation but retain greater intensity. In fact, if you use many intermediate polarizers, the polarization axis can be rotated by 90° with virtually undiminished intensity. (a) Derive an equation for the resulting intensity if linearly polarized light passes through successive N polarizers, each with the polarizing axis rotated by an angle 90°/2N larger than the preceding polarizer. (b) By making a table of the resulting intensity for various values of N, estimate the minimum number N of polarizers needed so that the light will have its polarization axis rotated by 90° while maintaining more than 90% of its intensity. (c) Estimate the minimum number of polarizers needed to maintain more than 95% and 99% intensity.