Answer:
Functions of different parts are given below.
Step-by-step explanation:
Draw tube is a part of microscope that connects the eyepiece to the objective lenses. Objective lenses combine with the eyepiece lens in order to increase magnification levels of the microscope. Revolving nose piece also known as turret which have objective lenses which allow the users to rotate this part to change the objective lenses and adjust the magnification power.