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Quiz08b-s - Quiz 8b Name Phys224 Date Spring 2010 Dr P...

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Quiz 8b Name: Date: Phys224 Spring 2010 Dr. P. Hanlet Concept (3 points each) 1. The figure below shows black body radiation spectra for three different temperatures. These spectra are important because they ushered in quantum mechanics since classical theory could not describe: : 5000K 500K 273K (a) the 5000 K spectrum (b) the 500 K spectrum (c) the 273 K spectrum (d) all spectra at large λ (e) all spectra at small λ 2. In Compton’s wavelength shift equation, the angle refers to which direction? (a) The angle between the incoming and outgoing electrons (b) The angle between the incoming electron and outgoing photon (c) The angle between the incoming photon and outgoing electron (d) The angle between the incoming and outgoing photons (e) The photon’s angle of reflection 1
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Problem (5 pts) Show your work!!! If I can read it, I will give you partial credit!!! Correct answers without work will NOT get full credit. 3. A manufacturer is designing a new, light-sensitive, automatic door opener, and is performing the requisite R&D for its development. Initially, she is experimenting with a block a pure (and clean)
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