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# optics - Chrissy Henderson Physics Lab 3 Section 7 Wed...

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Chrissy Henderson Physics Lab 3 Section 7, Wed. 12:20 24 March 2005 1

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Chrissy Henderson Physics Lab Section 7, Wed. 12:20 24 March 2005 Optics I. Introduction In Lab 3, we will explore optics by completing three different experiments. The first part includes measure the angles of reflected and refracted light, and then comparing our values to the accepted values. In the second part, we handle two types of lenses: converging and diverging. Using the given light and lenses, we will measure the focal length ( f ), then adjust d o to 2 f , 2 f -10, and 2 f +10 and record the following d i s; compare the experimental and theoretical values of d i which is given by the equation d i =(d o * f )/(d o - f ). We will then switch from using a converging lens to a diverging lens to verify there is no real image given by this lens. However, using a combination of the two lenses, we can then calculate the focal length of the diverging lens by the equation: 1/ f t =1/ f c + 1/ f d . Finally, we will find the power of the lens by using the equation: P=1/ f .
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