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Chapter 30. Mirrors & Lenses. Plain Mirrors . Virtual Image Same size as object Equal distance from mirror “Flipped” Right to Left. Concave Mirror. Image depends on location of object Object farther than F Real image Upside down and reversed R to L. Concave Mirror.

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chapter 30

Chapter 30

Mirrors & Lenses

plain mirrors
Plain Mirrors
  • Virtual Image
  • Same size as object
  • Equal distance from mirror
  • “Flipped” Right to Left
concave mirror
Concave Mirror
  • Image depends on location of object
  • Object farther than F
  • Real image
  • Upside down and reversed R to L
concave mirror4
Concave Mirror
  • Object closer than F
  • virtual image
  • right side up
  • magnified
convex mirrors
Convex Mirrors
  • Object located anywhere in front of mirror
  • Creates a virtual mage
  • behind mirror
  • right side up
  • smaller
mirror formula
Mirror Formula
  • f = focal length
  • do = object distance
  • di = image distance
  • 1/f = 1/do + 1/di
  • real image has positive image distance
  • virtual image has negative image distance
convex lenses
Convex Lenses
  • Image depends on location of object
  • Real image occurs when object is “far” away
  • upside down
  • bigger or smaller
convex lenses cont
Convex Lenses (cont.)
  • Object closer than focal length
  • Virtual image
  • right side up
  • larger
  • magnifying glass
  • corrective lens for far-sighted
concave lens
Concave Lens
  • Virtual Image
  • right side up
  • smaller
  • corrective lens for myopia
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