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metre mm = 1 m

millimetre mm = 10-3 m

micrometre µm = 10-6 m

nanometre nm = 10-9 m

Magnification and Resolution

If a microscope uses more lenses, it can magnify by a higher amount , but this doesn't nesscarily
mean more detail is observed. This instead…

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Scanning Microscopes

A beam of electrons is passed over the surface of the specimen, these are reflected off the specimen
as it has been coated in heavy metals, these are then focused on a fluorescent screen in order to
make up the image. This is good for thicker specimens, as…


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