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Biology - Electron Microscopes Electron Microscopy is the use of Electron Microscopes. Electron Microscopes have a very high resolving power and a high magnification, and thus are used to view small objects with greater magnification and detail than a light microscope. There are two different types of electron microscopes, each with different abilities and limitations. This essay will analyse and discuss the functions and limitations of each different type individually, and then conclude with comparisons. Transmission Electron Microscope This type of electron microscope allows the user to view a 2d image of a cross section of a sample. It has a maximum resolution of 1 nm and a maximum magnification of 250,000 x. The good resolution is due to the short wavelengths of electrons, which is 0.005 nm. In a TEM the electrons are fired from an electron gun, which is part of the cathode, and are drawn through the microscope by...

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