Lab 5 Part 1

# Lab 5 Part 1 - Shannon MacAdams Eric Kirchoff TA...

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TA: Miaoyin (Kevin) Wang Physics 232—Section 232-006 Lab performed Feb. 17, 2009 Lab due Feb. 24, 2009 Lab Five: Simple Lenses Introduction: This experiment is performed to learn the various characteristics that define thin lenses. Measuring focal lengths and predicting object and image distance for unknown concave and convex lenses are skills to be acquired. In doing this the difference between real and virtual images should become apparent as well as the relationship of magnification to different lens types. The main theory of this lab is based on the thin lens equation that is given as + = 1o 1i 1f where “o” is the object distance, “i” is the image distance, and “f” is the focal length. This equation is true for both converging and diverging lenses, as well as situations where more than one lens is used so long as it applied to every lens in use. Converging or double convex lenses can create both real and virtual images depending on where the object image is displayed. If it is

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Lab 5 Part 1 - Shannon MacAdams Eric Kirchoff TA...

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