Chapter 7: Problem 9
Can we measure both the position and momentum of a particle with complete precision?
Chapter 7: Problem 9
Can we measure both the position and momentum of a particle with complete precision?
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Get started for freeAn electron is confined to a box of width \(0.25 \mathrm{nm}\). (a) Draw an energy-level diagram representing the first five states of the electron. (b) Calculate the wavelengths of the emitted photons when the electron makes transitions between the fourth and the second excited states, between the second excited state and the ground state, and between the third and the second excited states.
Find the expectation value of the square of the momentum squared for the particle in the state, \(\Psi(x, t)=A e^{i(k x-\omega t)} .\) What conclusion can you draw from your solution?
If a classical harmonic oscillator can be at rest, why can the quantum harmonic oscillator never be at rest? Does this violate Bohr's correspondence principle?
An electron confined to a box of width 0.15 nm by infinite potential energy barriers emits a photon when it makes a transition from the first excited state to the ground state. Find the wavelength of the emitted photon.
Can we measure the energy of a free localized particle with complete precision?
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