Understanding the Compound Light Microscope

This video tutorial demonstrates the parts and operation of a compound light microscope. It covers the arm, base, oculars, revolving nosepiece, stage, and adjustment controls. The video explains how to use the condenser and light source effectively. It also provides guidance on cleaning and storing the microscope properly to ensure its longevity.

What is the function of the arm and base of a microscope?

• To focus the specimen

• To control the light intensity

• To hold and support the microscope

• To adjust the magnification

How can the oculars of a microscope be adjusted?

• By rotating them

• By moving them up and down

• By adjusting them in and out

• By changing their lenses

What is the purpose of the revolving nosepiece on a microscope?

• To adjust the light source

• To hold the slide in place

• To switch between different objective lenses

• To focus the specimen

Which of the following is NOT a magnification level found on the microscope's objectives?

• 100x

• 40x

• 20x

• 10x

What is the function of the stage moving controls?

• To move the stage back and forth, right and left

• To move the stage up and down

• To adjust the light intensity

• To change the magnification

How does the fine adjustment knob differ from the coarse adjustment knob?

• It adjusts the light source

• It moves the stage quickly

• It moves the stage in smaller increments

• It changes the objective lens

What is the role of the iris diaphragm lever on a microscope?

• To control the amount of light passing through the condenser

• To adjust the stage height

• To focus the specimen

• To change the objective lens

Where is the light source located on a microscope?

• On the side of the microscope

• Inside the oculars

• Below the condenser

• Above the condenser

What should be used to clean the oculars and objectives of a microscope?

• Tissue paper

• Lens paper

• Regular paper

• Cotton cloth

What is the final step in storing the microscope after use?

• Turn off the light source

• Lower the stage completely

• Put on the dust cover

• Wrap the power cord around the base