3. A student is viewing the specimen in the High Power
Objective. The field of view is dim and not so clear. What
should be done by the student to make the image visible and
clear?
A. Adjust the diaphragm to make sure of adequate supply of
light.
B. Turn the fine adjustment knob until the image is visible
and clear.
C. Rotate the revolving nosepiece from high power to low
power objective.
D. Turn the coarse adjustment up until the image becomes
visible and clear.​