Science Homework Help

1. For what purpose would you adjust each of the following microscope components during a microscopy exercise?

a. Iris diaphragm-

b. Coarse-adjustment knob-

c. Fine-adjustment knob-

d. Condenser-

e. Mechanical stage control-

2. As a beginning student in the microbiology lab, you experience some difficulties in using the oil-immersion lens. Describe the steps you would take to correct the following problems:

a. Inability to bring the specimen into the sharp focus-

b. Insufficient light while viewing the specimen-

c. Artifacts in the microscopic field-