the use of electrons
- Created by: Imogen Maytum
- Created on: 12-11-13 18:07
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- The use of Electrons.
- Light microscopes have a low resolution.
- This means that is the magnification is above x1500, the image isn't clear.
- We can achieve higher resolution with electron microscopes.
- This means that is the magnification is above x1500, the image isn't clear.
- Electron microscopes generate a beam of electrons.
- Electron microscopes can distinguish between objects 0.2nm apart.
- These microscopes use magnets instead of lenses to focus the bream of electrons onto a prepared specimen.
- Electrons are not visible to the human eye.
- The image produced from the electron beam is projected onto a screen or onto photographic paper to make a black-and-white image.
- Such images are called ELECTRON MICROGRAPHS.
- The image produced from the electron beam is projected onto a screen or onto photographic paper to make a black-and-white image.
- Electrons are not visible to the human eye.
- These microscopes use magnets instead of lenses to focus the bream of electrons onto a prepared specimen.
- Electron microscopes can distinguish between objects 0.2nm apart.
- Light microscopes have a low resolution.
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