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Back to 7.2 The Heisenberg Uncertainty Principle

7.2 Exercise 11

Avg difficulty 2.5

Measurements indicate that an atom remains in an excited state for an average time of 50.0 ns before making a transition to the ground state with the simultaneous emission of a 2.1-eV photon. (a) Estimate the uncertainty in the frequency of the photon. (b) What fraction of the photon’s average frequency is this?

OpenStax University Physics Volume 3, 7.2 The Heisenberg Uncertainty Principle, exercise 11

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Adapted from University Physics Volume 3 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 3. Imported at revision db44eb9.