The ________ is a Revolving Structure That Holds the Objective

Question

The ________ is a revolving structure that holds the objective lenses.
A) coarse adjustment knob
B) nosepiece
C) mechanical stage control knobs
D) fine adjustment knob

Accepted Answer

The nosepiece is the structure that holds the objective lenses and allows for easy switching between them. The coarse adjustment knob, mechanical stage control knobs, and fine adjustment knob are all part of the focusing mechanism of the microscope and do not hold the objective lenses.