Light Microscope:
This uses the wavelength of light to magnify an image
Transmission Electron Microscope:
Electron gun produces a beam of electrons,parts of the specimen absorb electrons. These appear darker, whilst other parts of the specimen allow electrons to pass through and it appears brighter
Scanning Electron microscope:
Electron gun produces a beam of electrons,
This is directed to the surface of the specimen rather than penetrating it from below.
Electrons are scattered by the specimen and the pattern of this scattering depends on the contours of the specimen surface
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