100%(8)8 out of 8 people found this document helpful
This preview shows page 1 - 4 out of 7 pages.
Converging Lenses and The Eye as an optical instrumentOseas Medina Christopher Kendl12/06/2016Physics 123
(Part a)ObjectiveThe purpose of this lab is to observe the location and size of the image produced by a converging lens. We will be applying the index of refraction and the fundamental lens equation to determine the location and magnification of the image. ObjectiveThe purpose of this lab is to determine the size and location of the image produced by our set up. We are to use the index of refraction and the Fundamental Lens Equation in order todetermine the location and magnification of our image.EquipmentOptics Bench75mm Focal Length Convex LensComponent Holders (3)Light SourceCrossed Arrow TargetViewing ScreenProcedure1.Set up the equipment as shown in the figure in your lab manual.2.Turn on the light source and slide the lens toward or away from the Crossed Arrow Target, as needed to focus the image of the target onto the viewing screen.Procedure Questions1.reduced2.yes3.Di would decrease4.(done below)5.Yes, if you take into consideration the small error in measurement 6.When do was 75mm and 50mm the image projected was far too large to measure Data DataCalculationsDo (mm)Di (mm)Hi (mm)1di+1do1fhiho−dido5009240.0129mm0.0133mm2-0.184509550.0127mm0.0133mm2.5-0.214009760.0128mm0.0133mm3-0.2435010170.0128mm0.0133mm3.5-0.29
30010380.0130mm0.0133mm4-0.34250108100.0133mm0.0133mm4.5-0.43200120140.0133mm0.0133mm6-0.60150152250.0132mm0.0133mm9.5-1.01100323750.0131mm0.0133mm21-3.2375N/AN/A50N/AN/ADiscussionIN this lab we were able to observe how images are reflected through a converging lens. Oncewe observed the distance of the object, image and the height of the image, we were able to calculate,using the fundamental lens equation, the height of the object and the focal length. Our calculationsshowed that di and do are inversely related and that as the object distanced was decreased themagnitude of said image increased. However we were unable to provide any data for the 50 and 75 mmdistances as the images projected were too large to measure. Questions:1.If the do =dithere would be a magnification of 1.