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46 Matching questions

  1. decrease
  2. absorbed, reflected
  3. critical angle
  4. hyperopia
  5. central ray
  6. refractive index
  7. convergig lenses
  8. principal focal point
  9. negative
  10. refractometer
  11. transmitted
  12. angle of incidence
  13. double convex lenses
  14. real image
  15. 1/f = (n-1) (1/r1 - 1/r2)
  16. virtual image
  17. n1 sin θ1 = n2 sin θ2
  18. focal ray
  19. 1/f = 1/do + 1/di
  20. planar
  21. increase
  22. myopia
  23. Snell's law
  24. total internal reflection
  25. optical density
  26. principal axis
  27. positive
  28. optical center
  29. P = 1/f
  30. double concave lenses
  31. principle of reversibility
  32. concave
  33. wavelength, speed
  34. transmitted, reflected
  35. diopter
  36. focal length
  37. diverging lenses
  38. mirage
  39. normal
  40. parallel ray
  41. refraction
  42. convex
  43. angle of refraction
  44. secondary focal point
  45. optical plane
  46. myopia and hyperopia
  1. a term to describe a flat surface
  2. b the most important converging lenses
  3. c term for the distance from the optical center to the principal focal point
  4. d When the angle of incidence reaches the ____ ___, the angle of refraction becomes 90 degrees.
  5. e term for a ray that pases through the optical center of a lens without deviation on the far side
  6. f the most important diverging lenses
  7. g term for lenses that spread parallel rays apart
  8. h A ____ of water is due to the refraction of sunlight as it passes through hot, expanding air at ground level.
  9. i another term for the simple relationship expressed by the first law of refraction
  10. j term for a ray that aproaches the lens through the focal point
  11. k Convergenging lenses have a _____ (positive, negative) focal length.
  12. l term an instrument that measures refractive index
  13. m The wavelength of light entering an optically denser medium must _____.
  14. n When light enters a new medium, _____ and ___ change.
  15. o If both media are transparent, but have different optical densities, some light is ____ and some is ____.
  16. p term for nearsightedness
  17. q two defects of vision that can be corrected by wearing eyeglasses or contact lenses
  18. r term for the index that relates the speed of light in a vacuum to the speed of light in a particular medium
  19. s If a new medium is nontransparent, light is partly ____ and partly _____.
  20. t term for lenses that redirect parallel rayst oward a point of convergence
  21. u If two adjoining media have the same optical density, light is fully _____.
  22. v term for the point of convergence on the opposite side of the lens, to which rays are directed
  23. w term for a ray that travels parallel to the principal axis, and then refracts through the mirror to the principal focal point
  24. x term for the center of the lens
  25. y The wavelength of light entering a medium of lower optical density must ______.
  26. z term for farsightedness
  27. aa term for a material's resistance to the transmission of light waves
  28. ab term for light rays extending from a lens in order to intersect
  29. ac the lensmaker equation
  30. ad term for the bending of light rays at the boundary between two media differing in optical density
  31. ae another term for the focal length
  32. af term for the angle between an incoming ray and the normal to the boundary
  33. ag the equation for the power of a lens
  34. ah term for the perpendicular to a plane at the point of tangency
  35. ai the thin lens equation
  36. aj term for a plane perpendicular to the principal axis at the optical center
  37. ak term for reflection as a result of an angle of incidence greater than the critical angle
  38. al term for the angle between a refracted ray and the normal to the boundary
  39. am Diverging lenses have a ____ (positive, negative) focal length.
  40. an principle that states that the path of a light ray subjected to reflection or refraction is traced in reverse by any ray coming along the path in the opposite reaction
  41. ao term for the axis which is perpendicular to the lens plane
  42. ap term for a caved-in surface witht he same curvature ast he surface of a sphere
  43. aq the first law of refraction
  44. ar term for a bulging surface with the same curvature as the surface of a sphere
  45. as term for actual light rays intersecting after refraction
  46. at the unit for the power of a lens