Review27 - Modified from College Physics , 8 th Ed., Serway...

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Unformatted text preview: Modified from College Physics , 8 th Ed., Serway and Vuille. For the quizzes and tests, you should know all the concepts and equations in this summary. Section 27.1: Blackbody Radiation and Planck's Hypothesis The characteristics of blackbody radiation can't be explained with classical concepts. The hotter an object, the higher the frequency (the smaller the wavelength) is the peak its blackbody radiation curve. Planck first introduced the quantum concept when he assumed that the subatomic oscillators responsible for blackbody radiation could have only discrete amounts of energy given by E n = nhf [27.2] where n is a positive integer called a quantum number and f is the frequency of vibration of the resonator. Section 27.2: The Photoelectric Effect and the Particle Theory of Light The photoelectric effect is a process whereby electrons are ejected from a metal surface when light is incident on that surface. Einstein provided a successful explanation of this effect by extending Planck's quantum hypothesis to electromagnetic waves. In this model, light is viewed extending Planck's quantum hypothesis to electromagnetic waves....
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Review27 - Modified from College Physics , 8 th Ed., Serway...

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