29 INTRODUCTION TO QUANTUM PHYSICS
Figure 29.1A black fly imaged by an electron microscope is as monstrous as any science-fiction creature. (credit: U.S. Department of Agriculture via Wikimedia Commons)
Learning Objectives
29.1. Quantization of Energy- Explain Max Planck’s contribution to the development of quantum mechanics.
- Explain why atomic spectra indicate quantization.
29.2. The Photoelectric Effect - Describe a typical photoelectric-effect experiment.
- Determine the maximum kinetic energy of photoelectrons ejected by photons of one energy or wavelength, when given the maximum
kinetic energy of photoelectrons for a different photon energy or wavelength.
29.3. Photon Energies and the Electromagnetic Spectrum - Explain the relationship between the energy of a photon in joules or electron volts and its wavelength or frequency.
- Calculate the number of photons per second emitted by a monochromatic source of specific wavelength and power.
29.4. Photon Momentum - Relate the linear momentum of a photon to its energy or wavelength, and apply linear momentum conservation to simple processes
involving the emission, absorption, or reflection of photons. - Account qualitatively for the increase of photon wavelength that is observed, and explain the significance of the Compton wavelength.
29.5. The Particle-Wave Duality - Explain what the term particle-wave duality means, and why it is applied to EM radiation.
29.6. The Wave Nature of Matter - Describe the Davisson-Germer experiment, and explain how it provides evidence for the wave nature of electrons.
29.7. Probability: The Heisenberg Uncertainty Principle - Use both versions of Heisenberg’s uncertainty principle in calculations.
- Explain the implications of Heisenberg’s uncertainty principle for measurements.
29.8. The Particle-Wave Duality Reviewed - Explain the concept of particle-wave duality, and its scope.
CHAPTER 29 | INTRODUCTION TO QUANTUM PHYSICS 1029