8. Unpolarized light with an intensity of 110 is passed through two filters. The first has an axis of m2 polarization that is horizontal. The second has an axis of polarization 30° above the horizontal. a. What is the intensity of light after the first filter? b. What is the intensity of light after the second filter?

Unpolarized light passes through a single polarizer. Of the 100% of the light that made it through the first polarizer, how much will make it through... another polarizer, angled 30° to the first one, and then yet another polarizer, angled a further 30°. a vacuum. another polarizer, angled 30° to the first one. another polarizer, angled 90° to the first one. another polarizer, angled 45° to the first one. another polarizer, angled 45° to the first one, and then yet another polarizer, angled a further 45°. 1. 100% 2. 75% 3. 66.67% 4. 56.25% 5. 50% 6. 33.33% 7. 25% 8. 12.5% 9. 0%

Determine the speed, wavelength, and frequency of light from a helium-neon laser as it travels through polystyrene. The wavelength of the light from the laser is 632.8 nm in air and the index of refraction of polystyrene is 1.490. speed  =   m/s wavelength  =   nm frequency  =   Hz

Polarized light passes through two rotated filters from left to right, as shown. At the point A, its intensity is Io. The polarization axis of the first polarizer makes an angle 01= 52.6° with the direction of polarization the incoming light. The polarization axis of the second polarizer makes an angle 02= 59.6° degrees with the polarization axis of the first polarizer. E Polarized В light The intensity of light at the point C is:

6. In a polarizer-analyzer combination, 90.0% of the light intensity falling on the analyzer is absorbed. Determine the angle between the transmission axes of the polarizer and analyzer.

4. Figure CQ22.4 shows light from material A with index of refraction nд entering materials B and C with indices of refraction NB and nc Rank the three indices of refraction from largest to smallest. a. nд, nB , nc b. nB, nc, NA c. nc, WA 9 nB d. nB NA, 2 nc e. nc, nB, NA Figure CQ22.4 NA ng 55.0° i 55.0° nc

** 46. How much unpolarized light gets through a polarizer? Unpolarized light is as likely to have its polarization vector in one direction as another. Therefore, on average, the up-down component of the polarization vector for unpolarized light will be the same as the right- left component. These equal components in two perpendicular directions are in the same relationship as the E-field components when polarized light hits a polarizer with its polariza- tion vector at 45° to the optic axis. We can use this connection to find out what fraction of the energy in an incident unpolarized beam makes it through the polarizer as polarized light. a) If an electric field vector of a polarized light beam is 45° to the optic axis of the polar- izer, find the ratio between the magnitude of the electric field vector that passes through the polarizer and the magnitude of an incident polarized electric field vector. This will be the same as the ratio of the magnitude of the electric field of the…

A physics class is investigating the properties of light using polarizing filters. The students change the orientation of the two filters to see how much light can travel through both filters. Unpolarized light Filter Filter A To completely block the light, which orientation should the students use for the two filters?