lecture14 (11-1-2006) Ch 8

lecture14 (11-1-2006) Ch 8 - Chemistry 2A-c F2006 (Ch8-1)97...

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1 Chemistry 2A Chemistry 2A -c F2006 c F2006 (Ch8 (Ch8 -1)97 1)97 Electrons and Atoms Electrons and Atoms At the end of the 19 th century: Classical Physics , such as Newtonian Mechanics, cannot explain phenomena at the atomic and molecular levels – called for the development of Quantum Theory I. Electromagnetic Radiation (plane polarized) wavelength E field H field
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2 Light is a form of electromagnetic radiation Oscillating electric and magnetic fields perpendicular to direction of travel E field perpendicular to H field Chemistry 2A Chemistry 2A -c F2006 c F2006 (Ch8 (Ch8 -2)98 2)98 ) ( 2 sin t x E E m ν λ π = ) ( 2 sin t x H H m =
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3 Oscillating (Electric or magnetic) Vector Direction of travel Two independent variables Time (t) and Distance (x) ) ( 2 sin t x E E m ν λ π = Chemistry 2A Chemistry 2A -c F2006 c F2006 (Ch8 (Ch8 -3)99 3)99 E m -E m
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4 λ The distance between two adajacent equivalent points: wavelength= λ has units of m Now look with x = 0 and let time vary ) ( 2 sin t x y y m ν π = 0 = t direction of propagation .. DISPLACEMENT DISTANCE x Chemistry 2A Chemistry 2A -c F2006 c F2006 (Ch8 (Ch8 -6)102 6)102
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This note was uploaded on 04/23/2008 for the course CHEM 2A taught by Professor Guo during the Fall '08 term at UC Davis.

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lecture14 (11-1-2006) Ch 8 - Chemistry 2A-c F2006 (Ch8-1)97...

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