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5 Written questions

5 Matching questions

  1. focal length
  2. nomenclature of the EM spectrum
  3. human color sensitivity
  4. secondary colors
  5. refraction
  1. a orange, green, and purple
  2. b the bending of a ray of light
  3. c electromagnetic spectrum; visible light, infared light, etc.
  4. d in the retina, cones can sense color, unlike rods
  5. e the distance from a lens to its focus

5 Multiple choice questions

  1. primary colors of light are this
  2. muscular diaphragm that controls the size of the pupil
  3. the tracing of a ray
  4. the adjustable opening in the center of the eye through which light enters
  5. a reflected optical image; see "inverted image"

5 True/False questions

  1. deviationthe bending of a ray of light


  2. the Law of Reflectionthe reflecting of colors


  3. index of refractionthe ratio of the velocity of light in a vacuum to that in a medium


  4. bright line spectrathe electromagnetic spectrum


  5. wavelengththe distance from a lens to its focus