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Exploring Lens Phenomenon in Physics

Learn about the basic types of lenses - convex and concave - and the phenomenon evident in lenses. Understand the characteristics of images formed by convex lenses and the rules for ray diagrams. Dive into the sign convention, magnification, and lens equation for convex and concave lenses.

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Exploring Lens Phenomenon in Physics

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  1. Lenses PhysicsMrs. Coyle

  2. What phenomenon is evident in lenses? https://wiki.brown.edu/confluence/display/PhysicsLabs/PHYS+0080+BC

  3. Basic Types of Lenses • Convex • Concave

  4. Convex Lens http://www.shokabo.co.jp/sp_e/optical/labo/lens/lens.htm

  5. Concave Lens http://www.shokabo.co.jp/sp_e/optical/labo/lens/lens.htm

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

  7. Convex Lens f C Center

  8. Ray Diagram for Convex Lens Principal Axis http://facstaff.gpc.edu/~pgore/PhysicalScience/ray_diagram_sample.jpg

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

  11. 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 Summary for Convex Lens

  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 Note: When magnification is <0, the image is inverted.

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

  15. Concave Lens Object Image

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

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