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For an optical microscope, the principle of refraction, in its lenses.
The two basic principles that are involved using the microscope are magnification and observation. They are both done by examining an object through the lens of the microscope.
The principle of image formation in a compound microscope states that the second lens magnifies the image formed by the first lens. The use of two lenses enhances the magnification of the image.
Reflection
Uncertainty Principle can be used to give a drawback to Bohr's Model of an atom. In that atomic model Bohr said that electrons exist in certain well defined energy levels, to give a contradiction to this statement uncertainty principle may be used.
you use two convex lenses.
Light microscope
The transmission electron microscope operates on the same principle as the light microscope but uses electrons instead of light. What you can see with a light microscope is limited by the wavelength of light. Transmission electron microscopes use electrons as "light source" and their much lower wavelength makes it possible to get a resolution a thousand times better than with light microscope.
using microscope can find out many thing. special it can see smallest thing which we can't see by eyes.
There are two types of the electron microscope. First is called transmission electron microscope. It uses electrons passed through the sample to build a picture of the sample internal structure. Second type is scattered ("reflected" from the sample surface) electrons to build up a picture of the sample surface.
Best Answer - Chosen by VotersBecause they use light and powerful magnifying lenses. It is to distinguish them from Electron microscopes which work on a different principle.
There are two types of the electron microscope. First is called transmission electron microscope. It uses electrons passed through the sample to build a picture of the sample internal structure. Second type is scattered ("reflected" from the sample surface) electrons to build up a picture of the sample surface.