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Question
In electron microscope, source of light is ___________.
In electron microscope, source of light is ___________.
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Solution
The correct option is C Electron beam
An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination.The electron beam is produced by an electron gun, commonly fitted with a tungsten filament cathode as the electron source. The electron beam is accelerated by an anode typically with respect to the cathode, focused by electrostatic and electromagnetic lenses, and transmitted through the specimen that is in part transparent to electrons and in part scatters them out of the beam.
So, the correct answer is option 'C'.
An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination.The electron beam is produced by an electron gun, commonly fitted with a tungsten filament cathode as the electron source. The electron beam is accelerated by an anode typically with respect to the cathode, focused by electrostatic and electromagnetic lenses, and transmitted through the specimen that is in part transparent to electrons and in part scatters them out of the beam.
So, the correct answer is option 'C'.
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