3. A beam of light passes through a polarizer and then an analyzer. In this process, the  intensity of the light transmitted is reduced to 10% of the intensity of the intensity  incident on the analyzer. What is the angle between the axes of the polarizer and the  analyzer? a. 18° b. 22° c. 32° d. 68° e. 72°

10. A beam of light polarized along the y axis and moving along the +z axis passes through two polarizing sheets with axes of polarization oriented 30° and 70° measured clockwise from the positive direction of the y axis. The final intensity of the beam is found to be 61 W/m². What is the initial beam intensity? (1) 280 W/m² (2) 700 W/m² (3) 200 W/m² (4) 50 W/m² .2 (5) 140 W/m² 11. Light of wavelength 520 nm is incident perpendicularly on a diffraction grating having 200 lines/mm. What is the highest

8. Three polarizing disks whose planes are parallel and centered on common axis. The directions of their transmission axes relative to the vertical are respectively: 01 = 17°, 02 = 45°, and 03 = 55°. A beam of light polarized along the vertical is incident onto the first polarizer with an intensity of Io = 14 W/m2. Calculate the transmitted intensity through all three polarizers. W/m2 of19 00 of1 9 oor19

If the amplitude of an EM wave propagating through an unknown medium or substance is 2π N/C electric field and π x 10-8 T for magnetic field, what is the index of refraction of the aid medium? a. π b. 3 c. 5 d. 2/3 e. 3/2

Answer the following two bonus questions. a. The electric field in the EM wave is given by the following equation: E = 450sin(0.40z – 6.0 x 10°t)î, where E is N/C, z in meters and t in seconds. Determine the curl of the electric field (V X E). b. Use the divergence theorem to convert the Gauss' law from the integral form to the differential form.

An observer at a fixed distance from a light bulb measures the light intensity at her location to be 10 watts/m2. What is the maximum value of the electric field strength at the observer's location?    a. 87 N/C   b. 61 N/C   c. 48 N/C   d. 74 N/C   e. 100 N/C

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.

1 What is the electric field amplitude in an electromagnetic wave that has a magnetic field amplitude of 5.00 x 10-4rmT? Your units should be in V/m, but do not include your units in the answer box.

g . Explain what the polarization of electromagnetic waves is. State two examples for a possiblepolarization of a wave as well as an example for its application.