GENERAL HISTOLOGY

INTRODUCTION

MICROSCOPE PARTS MAGNIFICATION RESOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A slide of human blood cells was observed in focus under the low-power objective of a compound light microscope that had clean lenses. When the microscope was switched to high power, the image was dark and fuzzy. Which parts of the microscope should be used to correct this situation?
A
nosepiece and coarse adjustment
B
diaphragm and ocular lens
C
objective and fine adjustment
D
diaphragm and fine adjustment
Explanation: 

Detailed explanation-1: -A slide of human blood cells was observed in focus under the low-power objective of a compound light microscope that had clean lenses. When the microscope was switched to high power, the image was dark and fuzzy.

Detailed explanation-2: -On LOW POWER ONLY, use the coarse focus knob to get the object into focus. If you cannot see anything, move the slide slightly while viewing and focusing.

Detailed explanation-3: -3. Turn the coarse adjustment knob to raise the body tube. 4. Revolve the nosepiece until the low-power objective lens clicks into place.

Detailed explanation-4: -Revolving Nosepiece or Turret: This is the part that holds two or more objective lenses and can be rotated to easily change power.

There is 1 question to complete.