Explain the body tube of microscope, Biology

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Explain the Body Tube of Microscope?

Above the stage and attached to the arm is the body tube, to which eye piece(s) or ocular lens and revolving nosepiece is attached. Microscopes having eyepieces for both eyes are called binocular microscopes.

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Nosepiece contains three to five objective lenses of different magnifying power, which can be rotated at will. Microscope should be parfocal, i.e., the image should remain in focus when objectives are changed. The objectives are nearer the specimen and it produces the real magnified image of the specimen at focal plane. This image is further magnified by ocular lens to produce the final image.


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