1 of 25
What property of a compound light microscope enables a person to change objectives without major focusing adjustments?
2 of 25
How does closing the iris diaphragm affect image brightness and contrast?
decreases brightness and increases contrast
increases brightness and decreases contrast
decreases brightness but has no effect on contrast
3 of 25
Which of the following objectives has the shortest working distance?
4 of 25
What effect will changing from the low power objective to the high power objective have on the field of view of a specimen?
5 of 25
If the letter p is placed under the microscope in the normal reading position, which of the following orientations of the letter would the viewer see?
6 of 25
Which of the following procedures should be done just prior to adjusting the diopter, when using the compound microscope?
Clean all lenses with lens paper
Turn the light on
Adjust the iris diaphragm
Adjust the fine focus
7 of 25
Two parts of the microscope that regulate the amount of light visible through the ocular are the:
fine and coarse adjustment knobs
ocular and objective lenses
illuminator and revolving nosepiece
condenser and iris diaphragm
8 of 25
Initial focusing of any slide is done under the:
scanning or low power objective
high power objective
oil immersion objective
depends upon the size of the specimen
9 of 25
Under which magnification would the distance between the objective and the specimen being observed be the least?
10 of 25
What is the total magnification produced by a microscope, using a 10X