1. A convex lens is used to obtain an enlarged virtual image. a. True b. False ANSWER: True 2. The lens of the eye has a fixed focal length. a. True b. False ANSWER: False 3. The virtual image of a lens is always on the same side of the lens as the object. a. True b. False ANSWER: True 4. A positive magnification means the image is inverted compared to the object. a. True b. False ANSWER: False 5. Magnifications with values greater than one represent images that are smaller than the object. a. True b. False ANSWER: False 6. For a convex lens to form a virtual image the object must be located at some distance less than the focal length. a. True b. False ANSWER: True 7. Total internal reflection occurs when light moves from an area of higher index of refraction to one of lower index and strikes the boundary at an angle greater than the critical angle. a. True b. False ANSWER: True 8. Rainbows are formed because all colors of light bend the same amount when they enter a medium. a. True b. False ANSWER: False 1. A convex lens is used to obtain an enlarged virtual image. a. True b. False ANSWER: True 2. The lens of the eye has a fixed focal length. a. True b. False ANSWER: False 3. The virtual image of a lens is always on the same side of the lens as the object. a. True b. False ANSWER: True 4. A positive magnification means the image is inverted compared to the object. a. True b. False ANSWER: False 5. Magnifications with values greater than one represent images that are smaller than the object. a. True b. False ANSWER: False 6. For a convex lens to form a virtual image the object must be located at some distance less than the focal length. a. True b. False ANSWER: True 7. Total internal reflection occurs when light moves from an area of higher index of refraction to one of lower index and strikes the boundary at an angle greater than the critical angle. a. True b. False ANSWER: True 8. Rainbows are formed because all colors of light bend the same amount when they enter a medium. a. True b. False ANSWER: False
