MICROANATOMY

INTRODUCTION TO MICROSCOPY CELL BIOLOGY

MICROSCOPY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ is used to focus the image under scanning power.
A
revolving nose-piece
B
fine adjustment knob
C
coarse adjustment knob
D
diaphragm
Explanation: 

Detailed explanation-1: -Fine Adjustment Knob-This knob is inside the coarse adjustment knob and is used to bring the specimen into sharp focus under low power and is used for all focusing when using high power lenses.

Detailed explanation-2: -Coarse adjustment knob-Focuses the image under low power (usually the bigger knob) Fine adjustment knob-Sharpens the image under all powers (usually the smaller knob) Arm-supports the body tube and is used to carry the microscope.

Detailed explanation-3: -Focus (coarse), The coarse focus knob is used to bring the specimen into approximate or near focus.

Detailed explanation-4: -The coarse adjustment knob should only be used in the scanning objective lens because it moves the stage up and down in bigger increments and brings it closer to the lens faster, bringing it into focus. The fine adjustment knob is used on the higher objectives and brings the image into sharper focus.

There is 1 question to complete.