This is a show of the multiple choice test in quantum mechanics. In some questions there may be more than 1 correct answers. To get a credit for a question all correct answers have to be indicated.
The test will help you to make GRE from quantum mechanics.
The full test - 30 questions - android version - you can download from Google playstore - https://play.google.com/store/apps/details?id=sk.zdarma.finalexam
1. The Davisson-Germer experiment demonstrating the wave nature of electrons is based on
a) photon diffraction on a crystal lattice
b) scattering of photons by electrons
c) electron diffraction on crystal lattice
d) proton scattering by neutrons
2. Typical length a in quantum mechanics is (units are SI)
3. Energy levels for a particle of mass m in an infinite well of width L are
4. The Heisenberg uncertainty relation states that the uncertainties in position, ∆x, and momentum, ∆px, must satisfy the following inequality
5. Which of the following statements are true about hydrogen in a weak electric field E?
a) The ground state |100i has a zero dipole moment in the absence of the electric field.
b) The ground state energy depends linearly on E.
c) The ground state energy depends quadratically on E.
d) The first excited states |210i and |211i> can be combined, as |210i ± |211i> to form a dipole moment.
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Correct answers:
1 - C
2 - A
3 - B
4 - D
5 - AC
