geometric optics

# geometric optics - Lecture 21 Introduction to Geometric...

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Physics 102: Lecture 16, Slide 1 Today’s lecture will cover Textbook Chapter 23 Lecture 21: Introduction to Geometric Optics Physics 113 Dr. Renat Letfullin

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Physics 102: Lecture 16, Slide 2 The Ray Model of Light Reflection Flat Mirror Images in Spherical Mirrors Mirror Equation Refraction of Light Index of Refraction Snell’s Law Today... Physics 113 Dr. Renat Letfullin
Physics 102: Lecture 16, Slide 3 The Ray Model of Light Since light seems to move in straight lines, why not follow a light wave along a straight line path and simply draw the line to represent how the light will behave This line will be perpendicular to the wave front of the light wave We’ll see how this model helps understand many characteristics of light behavior Physics 113 Dr. Renat Letfullin

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Light incident on an object Absorption Everything true for wavelengths << object size Reflection (bounces)** See it Mirrors Refraction (bends) Lenses Often some of each
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• Spring '08
• JOENATHAN
• Physics, Light, Total internal reflection, Dr. Renat Letfullin

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