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Lenses

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Lenses

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    1. Lenses Physics Mrs. Coyle

    2. What phenomenon is evident in lenses?

    3. Basic Types of Lenses Convex Concave

    4. Convex Lens

    5. Concave Lens

    6. Type of Image Real or Virtual Enlarged or Reduced Erect or Inverted

    7. Convex Lens

    8. Ray Diagram for Convex Lens

    9. Rules for Ray Diagrams for Convex Lens A parallel ray refracts through the focal point. A ray through the center of the lens continues straight. A ray coming through the focal point, refracts parallel to the principal axis.

    10. http://higheredbcs.wiley.com/legacy/college/halliday/0471320005/simulations6e/index.htm?newwindow=true

    11. Summary for Convex Lens When the object is: Beyond 2F At 2F Between 2F and F At F Between F and lens Then the image is: Between 2F and F At 2F Beyond 2F No image Virtual image

    12. Sign Convention do  +    object distance di   +   real image, other side of lens di    -   virtual image, same side as object hi + erect image hi - inverted image f     +   converging lens (convex) f     -    diverging lens (concave)

    13. Magnification M = hi = -di ho do

    14. Lens Equation 1 = 1 + 1 f do di

    15. Concave Lens

    16. Summary for Concave Lens Always: Virtual, reduced, upright image

    17. http://bcs.wiley.com/he-bcs/Books?action=resource&bcsId=1074&itemId=0471320005&resourceId=169

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