Question

The fine adjustment knob should only be used with which objective or

objectives?
A. The 100x objective only
B. The 100x and 40x objectives only
C. The 100x, 40x, and 10x objectives only
D. It may be used with all objectives.

Answer 1

The fine adjustment knob should only be used with the 100x objective.

Step-by-step explanation:

The fine adjustment knob should only be used with the 100x objective.

The fine adjustment knob is used to bring the specimen into sharp focus when using high magnification objectives, such as the 100x objective.

Using the fine adjustment knob with lower magnification objectives, such as the 10x or 40x objectives, may result in damaging the microscope or the slide.

Learn more about fine adjustment knob and microscope objectives