The Compound Microscope: Parts and Functions

What part of the microscope is used to carry it?

• Mirror

• Stage

• Arm

• Eyepiece

Answer explanation

The arm is used to carry the microscope with.

It is a large, round knob on the side of the microscope.

• Coarse Adjustment KnobInclination Joint

• Coarse Adjustment Knob

• Stage Knob

• Fine Adjustment Knob

Answer explanation

The coarse adjustment knob is found on the side of the microscope and used when shifting from High Power to Low Power magnification.

It is a large, flat are under the objectives where the slide is placed for viewing.

• Stage

• Base

• Mirror

• Stage Clip

Answer explanation

The stage is where the slide is placed for viewing. The slide is further fixed in place using the stage clips.

The ocular lens or eyepiece is used to:

• control the amount of light on the specimen.

• hold the objective lenses.

• look through to see the image of the specimen.

• assemble lights and improve magnification

Answer explanation

An observer looks through the eyepiece to view a specimen.

A low power objective has:

• 4x magnification

• 40x magnification

• 10x magnification

• 100x magnification

Answer explanation

A low power objective (LPO) has 10x magnification.

Image formed under the microscope is different from the original specimen.

• True

• False

Answer explanation

Image formed under the microscope is always upside down.

The numbers found in the eyepiece and objective lens determine how big the enlargement of the image seen under the microscope. So, if the eyepiece has 10x magnification and the objective has 4x magnification, the total magnification of the specimen viewed is:

• 14x

• 40x

• 6x

• 104x

Answer explanation

Just multiply them together to get the total magnification. (4 x 10 = 40x)

How do you transfer a microscope from the shelf to your table?

• You can hold it with a hand since it is not that heavy.

• Wrap it in your arms.

• Carry it with two hands.

• Tie a rope around it then pull.

Answer explanation

Picture "A" here is the proper way.

The word "microscope" is derived from Greek words:

• small and scope

• small and light

• big and study

• big and mirror

Answer explanation

Micro means small/little and Scope means see at.

What part of the microscope holds the eyepiece and connects to the objectives?

• Eyepiece

• Body tube

• A

• Revolving Nosepiece

Answer explanation

The body tube holds the eyepiece and connects to the objectives.