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Solve the following problems. 1. Snell's Law A light ray travels from air to water. The angle of incidence is 60 degrees from the line perpendicular to the surface between air and water. What is the angle of refraction if the indexes of refraction for air and water are 1.00 and 1.33 respectively? 2. Malus' Law Diffused or unpolarized light is incident on a series of three polarizers, The polarization axes of the first and second polarizer form an angle of 60 degrees, while those of the second and third polarizer form an angle of 45 degrees. a. If the intensity of the incident light is 50 W/m*2, what will its intensity be after passing through the first polarizer? b. What will be the intensity of light after passing through the second polarizer? c. What will be the intensity of light after passing through the third polarizer? 3. Mirrors The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed? 4. Lenses A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. How far from the lens is the image of this object formed