34 - Images

# 34 - Images - Physics 212 Fall 2009 Images Schedule Images...

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Physics 212 Fall 2009 Images 11/16/09

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Schedule Images Interference Review Exam III Thanksgiving Break Special Relativity
Summary Reflection and Refraction Index of Refraction n = c v v = λ n f λ n = λ n Optical wavelength λ n Blue light is bent more than red θ 1 = θ 1 reflection n 1 sin θ 1 = n 2 sin θ 2 refraction

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Flat Mirrors Inverted Image Same size same distance behind mirror Image is virtual
Flat Mirror You stand in front of a mirror. How tall does the mirror have to be so that you can see yourself entirely? 1) same as your height 2) less than your full height but more than half your height 3) half your height 4) less than half your height 5) any size will do

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Spherical Mirrors Focus Focus is related to the Center of Curvature f = C 2 Parallel rays converge at a point
Spherical Mirror Limit Spherical Abberation height of mirror must be small compared to radius of curvature Use parabolic design

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Concave Mirror “3-Ray” Image Image Equations 1 i + 1 o = 1 f m = h i h o = i o i - image distance o - object distance f - focal distance h i - image height h o - object height
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