Electron microscopes use ________ to focus the electron beam.
A)glass lenses
B)electromagnets
C)mechanical stages
D)laser beams

Question

Quizplus · Accepted Answer

Electron microscopes use electromagnets to focus the electron beam. This is because electrons are negatively charged particles and can be manipulated by magnetic fields, allowing for precise control of the beam's focus. Glass lenses and laser beams cannot be used to focus electron beams because they do not interact with electrons in the same way. Mechanical stages are used to maneuver the sample being viewed but do not contribute to beam focus.

Electron Microscopes Use ________ to Focus the Electron Beam