Topic — Quantisation, wave-particle duality and atomic structure.
Featured in chapters
21
Linked atoms
83 linked atoms.
21 Introduction to quantum mechanics
- What is a measurement
- Compton scattering at 90 degrees with X-rays
- What is a black body
- de Broglie wavelength of an electron at 300 V
- de Broglie wavelength of an electron at 70 V
- Derive the radius of the Bohr orbit
- Double slit, which intensity graph
- Photoelectric effect and energy bands
- Electron at 300 V and crystal diffraction
- Confined electron and uncertainty
- Energy of a blue photon at 400 nm
- Energy of a green light photon
- Energy of an ultraviolet photon
- Worked example — Compton scattering with a 0.8 MeV photon
- Worked example — stopping voltage for sodium
- Worked example — a red photon from the hydrogen atom
- Photoelectrons from sodium at 345 nm
- Intense red photon and work function
- The four great themes of quantum mechanics
- Wave-particle duality
- The polarising filter
- The photon
- The hydrogen atom model
- Uncertainty of a projectile
- Single-electron interference
- The Compton effect
- The electron as a standing wave
- The Franck-Hertz experiment
- The historic photoelectric effect experiment
- De Broglie’s hypothesis
- Planck’s hypothesis
- The ultraviolet catastrophe
- The crisis that produced a new world
- Bell’s inequality
- The four pillars: a single structure
- The four equations of the Bohr model
- Blue LED and semiconductor band gap
- Hydrogen levels, Balmer and Lyman
- Energy levels of the hydrogen atom
- Electron spin and the Pauli principle
- Waves, particles and the problem of the observer
- Why X-rays aren’t just intense light
- Why matter doesn’t collapse
- Uncertainty principle
- Problem — Spectral linewidth and mean lifetime
- Problem — Bell and hidden variables
- Problem — Infinite potential well
- Problem — Wave function collapse at the polariser
- Problem — Wave-particle complementarity
- Problem — Black body at different temperatures
- Problem — Current from an illuminated semiconductor
- Problem — From lambda to the initial level (Balmer)
- Problem — de Broglie wavelength of an electron at 100 V
- Problem — Energy of a green photon at 530 nm
- Problem — Science fiction physics, h multiplied by ten
- Problem — Science fiction physics, reducing h and atomic volume
- Problem — Science fiction physics, a universe without Pauli
- Problem — Uncertainty of the electron in an atom
- Problem — Hydrogen levels with horizontal lines
- Problem — Hydrogen level n=3 and the H-alpha line
- Problem — The single-electron paradox
- Problem — Why the atom doesn’t collapse (standing wave)
- Problem — Polariser and photon counting
- Problem — Quantum probability versus determinism
- Problem — X-rays from ionised fluorine
- Problem — Ranking the energies of the H levels
- Problem — Ranking transition frequencies
- Problem — Deriving h from photoelectric data
- Problem — Stellar spectrum and the line at 397 nm
- Problem — Fermi estimate, atoms in an apple
- Problem — Fermi estimate, photons from an LED
- Connecting Malus’s law and the single photon
- Ranking de Broglie wavelengths of electron, proton, photon
- Ranking the energies of four photons
- Deriving h and W from the photoelectric graph
- Detector at the slits and interference
- Absorption spectra
- Stability of the atom and the Rutherford model
- Entangled states
- Temperature of the Sun using Wien’s law
- True or false on quantum physics