Physics A-Level
Electron optics and magnetic focusing
What Electron optics and magnetic focusing means in Physics A-Level, as defined for AQA.
Definition of Electron optics and magnetic focusing
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Reference: AQA
Magnetic lenses focus and magnify the electron beam because glass would absorb or scatter electrons.
Topics that use Electron optics and magnetic focusing
- Electron microscopes (A-level only) (AQA A-Level)
Related terms
- de Broglie wavelength of electrons
- Energy conservation in electron acceleration
- Feedback control systems
- Order-of-magnitude estimation in physics
- Quantum tunnelling
- Resolution limits of electron microscopes
- Resolution limits of microscopes
- Specimen preparation and vacuum requirements
Using Electron optics and magnetic focusing in the exam
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