So, for our comprehensive exam (MS Physics) we need to answer 4 out of 7 problems. Here are the topics. 1. Fundamental Postulates of Quantum Mechanics 2. Wave Mechanics 3. Angular Momenta 4. Matrix Mechanics 5. Harmonic Oscillator 6. Atoms 7. Approximation Methods So, where do you think should I focus? What possible questions can they give based on these topics?