Microscope Basics

What is number 17?

• body tube

• arm/neck

• stage

• base

What is the function of the objective lens on a microscope?

• It adjusts the light intensity.

• It magnifies the image of the specimen.

• It supports the microscope slide.

• It focuses the image on the eyepiece.

Which part of the microscope is used to adjust the focus of the light on the specimen?

• Coarse adjustment knob

• Fine adjustment knob

• Condenser

• Illuminator

What is the purpose of the fine adjustment knob on a microscope?

• To move the stage up and down rapidly for general focusing.

• To adjust the light intensity.

• To make precise adjustments to the focus.

• To change the magnification power.

How do you calculate the total magnification of a microscope?

• Multiply the power of the objective lens by the power of the eyepiece.

• Add the power of the objective lens to the power of the eyepiece.

• Divide the power of the objective lens by the power of the eyepiece.

• Subtract the power of the eyepiece from the power of the objective lens.

Which part of the microscope holds the objective lenses and can be rotated to change magnification?

• Arm

• Base

• Revolving nosepiece

• Stage clips

What is the role of the condenser in a microscope?

• It magnifies the specimen.

• It focuses light onto the specimen.

• It holds the specimen in place.

• It adjusts the magnification.

If an objective lens has a magnification of 40x and the eyepiece lens has a magnification of 10x, what is the total magnification?

• 50x

• 400x

• 30x

• 4x

Which component of the microscope should you adjust first when trying to focus on a specimen?

• Fine adjustment knob

• Coarse adjustment knob

• Condenser

• Revolving nosepiece

What is the primary use of the stage clips on a microscope?

• To increase the magnification.

• To hold the microscope slide in place.

• To focus the light on the specimen.

• To adjust the height of the stage.