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Chapter 30

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

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  1. Chapter 30 Mirrors & Lenses

  2. Plain Mirrors • Virtual Image • Same size as object • Equal distance from mirror • “Flipped” Right to Left

  3. Concave Mirror • Image depends on location of object • Object farther than F • Real image • Upside down and reversed R to L

  4. Concave Mirror • Object closer than F • virtual image • right side up • magnified

  5. Convex Mirrors • Object located anywhere in front of mirror • Creates a virtual mage • behind mirror • right side up • smaller

  6. 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

  7. Convex Lenses • Image depends on location of object • Real image occurs when object is “far” away • upside down • bigger or smaller

  8. Convex Lenses (cont.) • Object closer than focal length • Virtual image • right side up • larger • magnifying glass • corrective lens for far-sighted

  9. Concave Lens • Virtual Image • right side up • smaller • corrective lens for myopia

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