Question

question 17
1 point
which of these procedures would minimize eye strain while looking through the microscope?
always wear glasses.
use the low power objective whenever you can.
keep both eyes open through the ocular.
close the diaphragm and/or condenser.
clear selection
question 18
1 point
if the letter b is placed under the microscope in its normal reading position, how would this image appear when viewing it through the microscope?
the letter b.
the letter d.
the letter p.
the letter q.
clear selection

Explanation:

For Question 17: Keeping both eyes open prevents the strain of forcing one eye closed while focusing with the other, which is a standard microscopy best practice for reducing eye fatigue. Other options are incorrect: not all users need glasses, low power does not reduce eye strain inherently, and closing the diaphragm/condenser affects image brightness, not eye strain.
For Question 18: Microscopes produce images that are inverted (upside down) and reversed (mirrored). Rotating the letter 'b' 180 degrees results in the shape of the letter 'q'.

Answer:

Question 17: Keep both eyes open through the ocular.
Question 18: The letter q.