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Question

Electron microscope is based on principle of

A
Electromagnetic theory
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B
Resolution of glass lenses
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C
Magnification of glass lenses
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D
Refraction of light
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Solution

The correct option is A Electromagnetic theory
The electron microscope is based on the principle of electromagnetic theory. The electron microscope uses electrostatic and electromagnetic lenses to control the electron beam and focus it on forming an image. These electron optical lenses are analogous to the glass lenses of a light optical microscope.
Thus, the correct answer is option A.

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