Microscope (Parts and function)
A Microscope is an instrument used to view or magnify organisms smaller that 0.001mm which cannot be seen by human naked eyes. A microscope is made of the following parts.
(i) Eye piece lens or ocular (x10) is used for viewing a magnified object.
(ii) Body tube: It provides attachment to eyepiece and revolving nose piece
(iii) Revolving nose piece is used for selecting objective lenses to be used and to be in line with the eyepiece
(a). Low power objective lens(x4) is used for the lowest magnification of an object
(b) Medium power objective lens (x10) it magnifies object more than low power objective lens
(c) High power objective lens (x40). It is used for the highest magnification of object for minute detail
(iv) Coarse focus knob: it is used for focusing an object at low power
(v) Fine adjustment knob: it is used for focusing object at medium and high power magnification so that object is sharper at focus
(vi) Arm is used for lifting or carrying the microscope
(vii) Stage: is for displaying slide and specimens under focus
(a) Clips: are the stage for holding glass slide on the stage
(b) Hole: is present on the stage for light source to the viewing object
(viii) Condenser: it is used to regulate the amount of light rays entering the microscope and object
(ix) Mirror: it is used for collecting light rays and directing them to the condenser and object.
(x) Base of the microscope- is for balancing it on the table
DIAGRAM OF A MICROSCOPE
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