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Unformatted text preview: kT by using the Fermi function. Compare the results with those obtained by using the exponential approximation. 3. (a) The position of an electron is determined to within 1 angstrom. What is the minimum uncertainty in its momentum? (b) An electrons energy is measured with an uncertainty of 1 eV. What is the minimum uncertainty in the time over which the measurement was made? 4. Given a plane wave ) exp( x jk A X = what is the expectation value for 2 p X and Z p , where p is the momentum....
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- Spring '10