SSC
BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
When you wanted to move the stage
|
|
|
When you wanted to adjust the light
|
|
|
When you wanted to put the microscope away
|
|
|
When you sneeze
|
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.
Detailed explanation-2: -The iris diaphram is an adjustable shutter which allows you to adjust the amount of light passing through the condenser. The angle determines the Numerical Aperture (NA) of the condenser. This diaphragm, generally called the aperture diaphragm, is one of the most important controls on the microscope.
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.