OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When you wanted to move the stage
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When you wanted to adjust the light
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When you wanted to put the microscope away
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When you sneeze
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Detailed explanation-1: -Use the diaphragm control lever to adjust the amount of light reaching the speciment, thus adjusting contrast of the image. Use the fine focus adjustment knob to refocus the image. Use the stage control knobs recenter the part of the speciment you’re trying to observe.
Detailed explanation-2: -Iris Diaphragm controls the amount of light reaching the specimen. It is located above the condenser and below the stage. Most high quality microscopes include an Abbe condenser with an iris diaphragm. Combined, they control both the focus and quantity of light applied to the specimen.
Detailed explanation-3: -Condenser and Field Diaphragm Alignment Correct adjustment of the condenser aperture diaphragm is one of the most critical aspects for obtaining superior image quality, because it controls the numerical aperture, resolving power, depth of field, and the overall image character.