1 - The Compound Microscope

The _______________ compensates for the differences in visual acuity of the reader's eyes.

• Diopter adjustment ring

• Body tube

• Fine focus adjustment knob

• Stage clip

This part of the microscope moves the stage up or down as you turn it either forward or backward.

• Objective lens

• Arm

• Coarse focus adjustment knob

• Tube tightening screw

All of the following can move the stage, regardless of direction, EXCEPT...

• Fine focus adjustment knob

• X-axis stage control knob

• Coarse focus adjustment knob

• Aperture adjustment knob

If the oil immersion objective is set as the objective to be used, which of these should you NOT move?

• Coarse focus adjustment knob

• Stage clip

• Revolving nosepiece

• Diopter adjustment ring

If the eyepiece equipped to the microscope has a magnification power of 5x and the objective set is the high-power objective, what is the estimated total magnification of the image seen?

• 400x

• 200x

• 500x

• 25x

Which of these controls how much light enters the condenser as it passes through the diaphragm?

• Aperture adjustment knob

• Stage clips

• Fine focus adjustment knob

• Body tube

This type of microscopy operates on the principle of birefringence.

• Polarizing microscopy

• Brightfield microscopy

• Fluorescence microscopy

• Electron microscopy

After setting the objectives to HPO after the LPO observation, you noticed that the image is blurred. Which of these should you use to bring the image to focus?

• Fine focus adjustment knob

• Coarse focus adjustment knob

• Stage control knobs

• Revolving nosepiece

Most of the mechanical components of the microscope are stored here.

• Arm

• Light source

• Rheostat

• Base

Which of these statements is true about the darkfield microscopy principle?

• The method is suitable for unstained tissue samples.

• This type of microscopy produces a bright or white background.

• This method of microscopy produces multiple colors based on how the stain reacts with the light.

• This method is suitable for spirochete examination.