Compare the principle of working of a compound microscope and an electron microscope.
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An electron microscope uses a beam of accelerated electrons as a source illumination which is reflected back to the eye-piece by the electron. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a higher resolving power than light microscopes and can reveal the structure of smaller objects.
A compound microscope uses a lens close to the object being viewed to collect light which focuses a real image of the object inside the microscope. That image is then magnified by a second lens or group of lenses at the eyepiece that gives the viewer an enlarged inverted virtual image of the object.
A compound microscope uses a lens close to the object being viewed to collect light which focuses a real image of the object inside the microscope. That image is then magnified by a second lens or group of lenses at the eyepiece that gives the viewer an enlarged inverted virtual image of the object.
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