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It regulates the amount of light that passes through a specimen.
The answer to this microscope question is the stage opening.
It is called the body tube it is the basic support of the microscope.
Frequency is the amount of times a wave passes through an area. Hertz is a measurement.
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It regulates the amount of light that passes through a specimen.
The diaphram Is What Controls How Much Light Is Released.
Control Valve
A simple device between the light and the slide that controls the amount of light that passes through the object being viewed.
It is called the body tube it is the basic support of the microscope.
The answer to this microscope question is the stage opening.
If your microscope is a Transmission Microscope then light has to pass through the specimen (that is how the microscope works).Other kinds of microscopes may not require this.
The amount of light that is directed from the bottom of an optical microscope through a specimen can be increased by using a stronger bulb or light source. A potentiometer can be used to dim or increase the strength of the light source.
the diaphragm
A transmission electron microscope (TEM) is a microscope in which a beam of electrons is transmitted through an ultra-thin specimen, interacting with the specimen as it passes through it.
A microscope contains one or more glass lenses that refract light that passes through them. Both microscopes and magnifying glasses utilize convex lenses.
A diaphragm is a simple device between the light and the slide that controls the amount of light that passes through the object being viewed.