Name_______________    Id#(last 4) ______   Mar. 21, 2001

Physics 100B: General Physics Electricity and Light Laboratory

Section 105 Wednesday 8-10:45

Reading Quiz #7
1(2pts) On the diagram below I show some parallel light rays entering a thin lens and being bent.  Indicate on the diagram the FOCAL LENGTH of this lens.

                      
Also, if the lens were replaced with a lens of HALF the original focal length, the parallel rays coming from the left would be bent in a different manner. On the diagram, trace where the rays would go for this new lens.