Higher Physics - Unit 3 - Electrons, Absorption and Emission

I created my own revision notes for all units of the Higher Physics course.

These are revision notes for part of the 3rd unit (Radiation and Matter), section 3 (Optoelectronics and Semi-conductors). I've uploaded all the subsections of this section in different files as they are otherwise too large.

Electrons, Absorption and Emission covers:
• Electron orbits
• Electron states/levels
• Photon absorption/emission
• Line emission spectra
• Line absorption spectra
• Associated equations