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ECE474S09_Lecture14

# ECE474S09_Lecture14 - ECE 474 Principles of Electronic...

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ECE 474: Principles of Electronic Devices Prof. Virginia Ayres Electrical & Computer Engineering Michigan State University

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Hint for Pr. 2.3: The goal is to reproduce Fig 2-2. Draw a line for every λ you calculate. Easier if you set this up in Excel instead of hand calculating. λ (thousands of angstroms) in Fig. 2-2 means λ (x 10 3 Ang). Example: λ = 10000 Ang = 10 (x10 3 Ang).
Hint for Pr. 2.4: Evaluate the constants in the square bracket and prove that they =cR. c is the speed of light and R is the Rydberg constant whose value and units are on p. 36 ν 21 , etc is misleading since it looks like just one specific transition. Try writing it ν ji , n i , n j instead.

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Lecture 14: Chp. 02: Nanosystems Quantized energy levels: Atomic spectra Wavelike electrons: Davisson-Germer Particle-like photons: Photoelectric effect Wavelike electrons+Unceratinty Principle: What is the average position? What is the average momentum?
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ECE474S09_Lecture14 - ECE 474 Principles of Electronic...

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