The part of compound light microscope that is used to change magnification is Part C. That is option B.
A compound light microscope is an instrument that is used to magnify an image thereby separating it into minute details.
The light microscope has two sets of lenses:
- The objective lens:
- The eye piece lens:
The objective lens which is the part labelled C is used to change the magnification of the image of an object. This is done by selecting the desired magnification through the rotation of the nose piece.
Most light microscopes have two or three objective lenses attached to a rotating nose piece. These lenses usually are 5x, 10x, 40x, 100x. This means that a 10x lens magnifies the image of the object by 10 times.
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