NEET PG DENTAL EXAM

Detailed explanation-1: -Coarse Adjustment Knob-The coarse adjustment knob located on the arm of the microscope moves the stage up and down to bring the specimen into focus.

Detailed explanation-2: -The coarse adjustment knob is used during low power and moves the stage quickly up or down to bring the specimen into view. To fine tune this image and to focus specimens under high power and oil immersion objectives, the fine adjustment knob is used to carefully move the stage minute distances.

Detailed explanation-3: -The microscope stage can be raised and lowered more quickly with coarse adjustment by turning the coarse adjustment knobs. The smaller knobs, called fine adjustment knobs, are similarly used to adjust the stage, but at stronger magnifications, they do so more gradually and with better control.

Detailed explanation-4: -Fine-Adjustment Knob: The smaller knob on each side of the microscope (close to the base). This knob is used to bring an object into fine and final focus. NOTE: all focusing using the high-power objective (40X) lens is done ONLY with the fine-adjustment knob.