1. Lenses Physics Mrs. 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.ht m

6. Type of Image Real orVirtual Enlarged or Reduced ErectorInverted

7. Convex Lens Center C f

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/colleg e/halliday/0471320005/simulations6e/inde x.htm?newwindow=truehttp://higheredbcs.wiley.com/legacy/colleg e/halliday/0471320005/simulations6e/inde x.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 d o + object distance d i + real image, other side of lens d i - virtual image, same side as object h i + erect image h i - inverted image f + converging lens (convex) f - diverging lens (concave)

13. Magnification M= h i = -d i h o d o Note: When magnification is <0, the image is inverted.

14. Lens Equation 1 = 1 + 1 f d o d i

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