The Compound Microscope Flashcards
What is magnification
the ability to make small objects seem larger
What is resolution
the ability to distinguish two objects from each other
what is foot or base
It is the basal, horse shoe-shaped structure. It provides support to all the remaining parts of the microscope.
What is pillar
It is the stand that lies on the stage and is a perpendicular projection.
Arm
It is a curved and strong structure used for handling the entire instrument.
Inclination joint
It is used for tilting the microscope.
Stage
It is a flat rectangular plate attached to the lower end of the arm. Slide or object is placed on the stage and studied. A hole is present in the centre of the stage. Light rays pass through this hole.
Stage clips
These are used for holding the slide in position.
Diaphragm
It regulates the intensity or amount of light entering into the microscope. It may be of two types viz., iris diaphragm and disc diaphragm.
Condenser
It controls the size of the light beam. It gathers light from the mirror (Fig. 279) and directs it to objective lens.
Body tube
It is the tubular, hollow part attached to the upper part of the arm of microscope. It can be moved up and down with the help of adjustment knobs.
Nose piece
It is a circular and revolving metalic part attached to the lower end of the body tube. It has three holes in which objective lenses can be fitted.
coarse adjustment knob
It is a large-sized knob used to move the body tube up and down for bringing the object into focus.
fine adjustment knob
It is a small-sized knob. It is used for fine and sharp focussing of the object. Exact focussing is done by this knob.
Eyepiece
It is the lens through which the person views the specimens.
