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Archive of 'Worked Solutions'


Quantum Mechanics



Quantum Theory

  • Quantum Theory summary
  • Planck's Quanta
  • Wave-particle duality
  • Heisenburg's Uncertainty Principle
  • The Wave Function
  • Quantum Tunneling
  • Quantum Entanglement
  • Bose-Einstein Condensate (BEC)

    Wave-particle Duality

  • The De Broglie Equation
  • Optical interference from a double slit
  • Quantum effects
  • Wavelengths compared

    Electron Diffraction

  • What is diffraction?
  • The Diffraction Grating
  • Bragg Diffraction
  • interference patterns
  • Electron, X-ray and neutron diffraction

    Photo-electric Effect

  • History & the Photon Model
  • Observations
  • Wave theory predictions
  • Eienstein's Photo-electric Effect Theory
  • Millikan's Apparatus, stopping potential

    Energy Levels, Ionisation

  • Visualising energy levels
  • Energy level changes
  • Spectral groups
  • Ionisation
  • Excitation Potentials and Energies


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