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Unformatted text preview: bout 750 m s-1, with an
uncertainty of 0.5%. According to the Heisenberg uncertainty principle, how accurately can the
position of the Ag atom be measured along the direction of motion? 7. Expectation value. A series of measurements of an observable Q on identically prepared quantum
systems gave the following integer-valued outcomes: = -5, -3, -2, -2, 0, 1, 4, 4, 4, 9, 12. (a)
Compute the expectation value (= mean), 〈 〉? (b) Compute the uncertainty (= standard deviation =
root-mean-square deviation), . (c) What is the median? (d) What is the most likely value (= mode).
(a) The mean is 〈 〉
(b) The expectation value of th...
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This note was uploaded on 12/09/2012 for the course CHEM 455 taught by Professor Reinhardt during the Fall '06 term at University of Washington.
- Fall '06