lab5 - Diana Wu 803576180 2 December, 2008 Physics 4BL Sec...

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Diana Wu 803576180 2 December, 2008 Physics 4BL Sec 5 Geometric Optics II. Introduction The purpose of this lab is to examine the geometric and physical properties of light rays. I will accomplish this by verifying Snell’s Law of refraction using prisms of various shapes and using thick and thin lenses to redirect and focus light rays. III. Experimental Results Part A For this section, I placed a trapezoidal prism in the beam path produced by a ray box and measured the incident, reflected, and refracted ray angles. For the first trial, I angled the trapezoid about 45 degrees. For the second trial, I angled the trapezoid at the angle at which total internal refraction occurred. Snell's Law TIR incident (degrees) 35.5 25 reflected (degrees) 35.5 0 refracted (degrees) 35 75 As predicted the incident and reflected rays are at the same angle to the normal. Part B Thick Lenses biconvex lens biconcave lens plano-convex focal length (mm) 61.5 45 113.5 Here I placed three different types of thick lenses in the beam path of the ray box
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This note was uploaded on 11/12/2010 for the course PHYSICS 4B 318017201 taught by Professor Carter during the Spring '10 term at UCLA.

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lab5 - Diana Wu 803576180 2 December, 2008 Physics 4BL Sec...

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