Lenses Reviewer 2 PDF

LENSES REVIWER 2_ by Ma’am EAA 1. What type of lens is shown here? A. convex lens B. concave lens C. meniscus lens D. bifocal lens 2. What type of lens allows light rays to diverge and is used in flashlights to produce w...

LENSES REVIWER 2_ by Ma’am EAA 1. What type of lens is shown here? A. convex lens B. concave lens C. meniscus lens D. bifocal lens 2. What type of lens allows light rays to diverge and is used in flashlights to produce wider beam of light? A. convex lens B. concave lens C. meniscus lens D. bifocal lens 3. What type of lens is used to produce an upright and small image of the object such as the one used in peepholes? A. convex lens B. concave lens C. meniscus lens D. bifocal lens 4. This lens is used in overhead projectors to produce an enlarged image of an object that can be projected on a white screen. A. convex lens B. concave lens C. meniscus lens D. bifocal lens 5. Rita has difficulty seeing objects located at greater distances. What type of lens would you recommend for her use? A. convex lens B. concave lens C. meniscus lens D. bifocal lens 6. Which of the following is INCORRECTLY MATCHED? A. retina – film B. iris – diaphragm C. pupil – aperture D. none of these 7. Which of these optical instruments utilizes CONVEX lens? A. magnifying glass B. eyeglasses for myopia C. flashlight D. peepholes 8. Daniel's grandfather has no difficulty seeing distant objects. However, his eye doctor suggested that he must wear eyeglasses made of convex lens. This means that he has eye defect called ____________________. A. Hyperopia B. myopia C. astigmatism D. cataract 9. When an object is placed on the focal point in front of a convex lens, the image produced is ___. A. real, reduced, and inverted B. real, enlarged, and inverted C. real, true, and inverted D. There is no image 10. When an object is placed between the focal point and the convex lens, the image produced is ___. A. real, reduced, and inverted B. real, enlarged, and inverted C. virtual, enlarged, and upright D. virtual, reduced, and upright 11. The image is…. A. Inverted and smaller B. inverted and bigger C. not inverted and smaller D. not inverted and bigger 12. a real image... A. is produced by virtual rays and can be projected on a screen B. is produced by real rays and cannot be projected on a screen  C. is produced by virtual images and cannot be projected on a screen D. is produced by real rays and can be projected on a screen 13. What type of lens do humans have in their eyes? A. Concave Lens B. Convex Lens 14. What type of image is formed when rays of light intersect? A. real B. virtual C. projected D. curved 15. If an object's distance from a convex lens were increased, the image would become which of the following? A. Larger and virtual B. Larger, only C. Smaller, only D. Smaller and virtual 16. The di for a virtual image will have a ______ value. A. Positive B. negative 17. In this photograph, the water droplet is acting like a lens. Lenses work because of _________. A. Reflection B. Refraction C. diffraction D. interference