1. At what minimum angle will you get total internal reflection of light traveling in water and reflected from ice?

2. A beam of white light goes from air into diamond at an incident angle of 66.0. At what angle is the orange (610 nm) light refracted?

At what angle is violet (410 nm) light refracted?

3. By how much do the critical angles for red (660 nm) and violet (410 nm) light differ in a flint glass surrounded by air?

4. A parallel beam of light containing orange (610 nm) and blue (470 nm) wavelengths goes from polystyrene to water, striking the surface between them at a 43.0 incident angle. What is the angle between the two colors in water?

5. Your camera's zoom lens has an adjustable focal length ranging from 80.0 to 200 mm. What is its range of powers? P_max = ____ P_min = ______ 6. How far from the lens must the film in a camera be, if the lens has a 35.0 mm focal length and is being used to photograph a flower 75.0 cm away?

7. A doctor examines a mole with a 19.0 cm focal length magnifying glass held 16.0 cm from the mole Where is the image?

What is its magnification? How big is the image of a 3.10 mm diameter mole?