| High Frequency Approximation |
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Classical Mechanics and Geometric Optics are the most common and extreme high frequency approximation, where the wave or field properties of, respectively, Quantum Mechanics and Electromagnetism are neglected entirely. Less extreme approximations include, the WKB Approximation , Physical Optics , the Geometric Theory Of Diffraction , the Uniform Theory Of Diffraction , and the Physical Theory Of Diffraction . When these are used to approximate Quantum Mechanics are called Semiclassical . SEE ALSO |
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