Electron Microscope

Cards (5)

Why do light microscopes have poor resolution?
Due to the long wavelength of light.
What are the 2 advantages of electron microscopes?
They have a high resolving power and the beam can be focused using electromagnets as electrons are negatively charged.
How many more times is an electron microscope's resolving power than a light microscope's resolving power?
2000 times better.
What has to be created within the chamber of an electron microscope for it to work effectively and why?
A near-vacuum as electrons are absorbed or deflated by the molecules in air.
What are the two types of electron microscope?
The transmission electron microscope (TEM) and the scanning electron microscope (SEM).