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Unformatted text preview: 1 Lecture 15: Light Lecture 15: Light Chapters 14 and 15 Chapters 14 and 15 Lecture 15: Light Lecture 15: Light Chapters 14 and 15 Chapters 14 and 15 Plan Plan 1. 1. 2lectromagnetic waves 2lectromagnetic waves - 2lectromagnetic spectrum 2lectromagnetic spectrum Why materials are either Transparent or Why materials are either Transparent or - Why materials are either Transparent or Why materials are either Transparent or ?paque¡ ?paque¡ - Light Dispersion and Color ¢cience Light Dispersion and Color ¢cience £. Feflection and Fefraction £. Feflection and Fefraction- Law of Feflection Law of Feflection- Fefraction and speed of light Fefraction and speed of light - Mirrors and Lenses Mirrors and Lenses - ?ptical Instruments ?ptical Instruments Chapter 14: Homework • Key Terms • Review Questions: 2, 9, 11, 12, 15 • Exercises: 1, 2, 3, 4, 10 • Problems: 1, 4 Chapter 15 Homework Chapter 15, Homework • Key Terms • Review Questions: 3, 4, 10, 17, 18, 19 • Problems: 2 I. 2lectromagnetic waves The source of all electromagnetic waves is vibrating charges. How is works? A) ¡ibrating charges (electric currentO) create changing magnetic field; B) ¢hanging magnetic field induces an electric field (FaradayVs Law, electromagnetic inductionO); ¢) ¢hanging electric field induces a magnetic field ( Waxwell/s counterpart to FaradayVs Law); and so on. 2lectromagnetic Waves are Transverse Waves! 2 Speed of Light The speed of light in vacuum is an important physical constant denoted by the letter c for constant or the Latin word celeritas meaning \swiftness\. It is the speed of all electromagnetic radiation, including visible light, in a vacuum....
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- Fall '08
- Light, Wavelength, Fefraction