Unit+11+Lenses,+Imaging,+and+Intensity



I'll print it out-Courtney

here's the procedure

Here's the Completed Data

conclusion:
==== In this lab we studied the make of convex and concave lenses and its effects. A lens is an optical device with perfect or approximate axial symmetry which transmits and refracts light, converging or diverging the beam. We setup two lenses a certain distance apart and shine a light through a paper with a design on it, which in turn created a shadow on another paper, and the purpose of this experiment was to find the length in which the shadow became clear, by moving the lenses closer or farther apart. Overall the recitation was a success and the uses of concave or convex lenses made more sense. Although the possibility of human error was minimal, there was a chance that the bulbs we used were mislabeled and we lacked the proper equipment to properly test the wattage of the light bulbs, another possibility was an error in the calculation part of the experiment in which a rounding error or simple algebraic miscalculation had occurred. Our results that we obtained were anticipated and we accepted as correct. ====

Aim:
===for unit 11 lab we will be looking at lenses, we will look at magnification with diverging and converging lenses and the position and size of images produced by these lenses, we will use the lens equation to find the position of our images and the magnification equation to find the degree of magnification of our image. then we will test the difference in the intensity of radiation with regards to moving towards and away from a set source and with light bulbs of different wattage.===

//Experiment No. 3: Determination of “f” for a diverging lens(work shown below)//

Focal Length: Magnification:

D(o1) = 6.5 D = 18 D (i2) = 17

H(i1) = 2.5 H(i2) = 1.1 Calculated m to be 0.44

Did some calculations, think focal length may 4.702

I don't have the data for Experiment 3 and to be honest I don't really know how to do it. If someone can post the detailed measurements and lets me know soon on FB, I'll do my best to legitimize some bullshit work lol *EDIT: COMPLETED DATA POSTED ABOVE**
 * INCOMPLETE***