lecture16 - Physics 102 Lecture 16 Introduction to Mirrors...

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Unformatted text preview: Physics 102: Lecture 16 Introduction to Mirrors HE2: TODAY!! Material covered: • lectures 8 through 12 NOT INCLUDING RLC CIRCUITS! • discussions through 6 • homework through 6 • labs through 5 Light incident on an object • Absorption Everything true for wavelengths << object size • Reflection (bounces) – See it – Mirrors • Refraction (bends) – Lenses 5 • Often some of each Reflection θ i θ f 8 Angle of incidence = Angle of reflection θ i = θ r (Angles between light beam and normal) Object Location • Light rays from sun bounce off object and go in all directions – Some hit your eyes We know object’s location by where rays come from. • Color results from some light being absorbed by object before bouncing off. 10 Flat Mirror • All you see is what reaches your eyes – You think object’s location is where rays appear to come from. θ r θ i Smooth Mirror Object Image All rays originating from peak will appear to come from same point behind mirror!...
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lecture16 - Physics 102 Lecture 16 Introduction to Mirrors...

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