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What is the purpose of the diaphragm on the microscope?

• It is the light source

• It regulates/controls the amount of light

• Supports the stage

• Used for rotating the objective lenses

Which adjustment knob is used for final focusing (small adjustments to increase the focus of the lens)?

• Coarse Adjustment Knob

• Fine Adjustment Knob

Which adjustment knob is used for first focusing? (I.e. moving the stage closer or farther away from the objective lenses to find the specimen).

• Coarse Adjustment Knob

• Fine Adjustment Knob

Flat platform where you place the slide

• Base

• Stage

• Arm

• Light source

Using a 10x eyepiece and a 40x objective would give a total magnification of ___

• 40x

• 50x

• 400x

• 500x

If your teacher asks you to move a microscope to another table, how should you carry it?

• by the body tube and the eyepiece
• with one hand
• one hand on the arm and the other hand under the base

• with one hand on the base and the other on the eyepiece

What is number 15?

• light source
• base
• coarse adjustment
• fine adjustment

What is number 17?

• finger

• arm

• brain

• leg

When looking at a specimen on your slide, you should always start with the

• low objective lens (4x)

• medium objective lens (10x)

• high objective lens (40x)

• super extra high power lens (1000x)

What is number 2?

• Base
• Arm
• Stage
• Neck