Lesson: Heisenberg’s Uncertainty PrinciplePhysics
In this lesson, we will learn how to calculate the energy, duration of existence, momentum, and position of particles using the Heisenberg uncertainty principle.
Sample Question Videos
Use the Heisenberg uncertainty principle to calculate the uncertainty in energy for a corresponding time interval of s.
An unstable elementary particle has a rest energy of 80.41 GeV and an uncertainty in rest energy of 2.06 GeV. What is the minimum lifetime of this particle?
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 2.10 eV photon.
What is the minimum uncertainty in the frequency of the emitted photon?
What fraction of the emitted photon’s average frequency is the minimum uncertainty in its frequency?