PhotoelecPost - Kirchhoff's Laws of Radiation Morrison:...

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Kirchhoff’s Laws of Radiation Morrison: FRONTIERS OF ASTRONOMY, c 1990 by Saunders College Publishing
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Wave Model for Light Experimental Successes: interference & diffraction Theoretical Underpinnings: Maxwell’s Theory of E&M 6 accelerating charge produces an EM wave Problems: 1. Doesn’t explain nature of atomic spectra 2. Doesn’t predict details of photoelectric effect
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K avg = const independent of intensity . Metal Photoelectric Effect e - e - e - e - e - 8 # electrons Intensity
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Metal e - e - e - e - 8 # electrons Intensity K f Metal #1 1 Metal #2 f f 2 The threshhold frequency is different for different metals. Must increase frequency (decrease wavelength) to increase kinetic energy of
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PhotoelecPost - Kirchhoff's Laws of Radiation Morrison:...

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