... enables the microscope to a produce a clearer image. This can also be done by using electron magnets to focus the image onto a fluorescent screen. The resolving power of a microscope depends on the wavelength of the electromagnetic radiation used whilst increasing the magnification in electron microscopy results in an increase in the amount of visible detail. An image is formed from electrons emitted or reflected from the surface of a complete specimen where light areas on an electronmicrograph are produced when electrons have been able to pass through the specimen whilst electron dense areas scatter the electrons and produce dark areas on the electronmicrograph. Photographs of a specimen viewed with an electron microscope are called electronmicrographes. The transmission electron microscope allows us to see as separate structures parties which are as close together as 2 nanometres (therefore, the resolution of the transmission electron microscope is about 2 nanometres). The ...

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