Concept — Quantum of electromagnetic energy proportional to frequency.
Present in chapters
19·21
Linked atoms
46 linked atoms.
19 Le equazioni di Maxwell e le onde elettromagnetiche
- The electromagnetic spectrum
- Problem — Energy of a visible photon
- Problem — H-alpha line
- Problem — Radiation pressure and comet tails
- Problem — Momentum of a laser pulse
- Problem — Ranking photon energy
21 Introduzione alla meccanica quantistica
- Compton scattering at 90 degrees with X-rays
- Photoelectric effect and energy bands
- 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
- Wave-particle duality
- The polarising filter
- The photon
- The Compton effect
- The historic photoelectric effect experiment
- Planck’s hypothesis
- Blue LED and semiconductor gap
- Hydrogen levels, Balmer and Lyman
- Energy levels of the hydrogen atom
- Why X-rays are not just intense light
- Problem — Spectral width and mean lifetime
- Problem — Wavefunction collapse at the polariser
- Problem — Current from an illuminated semiconductor
- Problem — From lambda to the initial level (Balmer)
- Problem — Energy of a green photon at 530 nm
- Problem — Hydrogen level n=3 and the H-alpha line
- Problem — Polariser and photon counting
- Problem — X-rays from ionised fluorine
- Problem — Ranking transition frequencies
- Problem — Deriving h from photoelectric data
- Problem — Stellar spectrum and the 397 nm line
- Problem — Fermi estimate: photons from an LED
- Connecting Malus’s law and a single photon
- Ranking de Broglie wavelengths: electron, proton, photon
- Ranking the energies of four photons
- Deriving h and W from the photoelectric graph
- Absorption spectra
- Entangled states
- Problem — True or false on quantum physics