Microscope

Eyepiece

Contains the ocular lens

Nose piece

Holds the objectives; rotates to change magnification

450 x

If your ocular lens is 10 x, the total magnification when using the midrange 45 x objective lens is __________.

Fine Adjustment Knob

Moves the stage slightly to sharpen the image

Light Source

Projects light through the slide

Base

Supports the microscope

Condenser

The ________ is a substage lens that concentrates light on the specimen.

Nosepiece

The _________ of the microscope carries three or four objective lenses.

Resolution

The ability to discriminate two close objects as separate is called _______________

area you see through the lenses of the microscope

The microscope field is the _____________.

Multiplying the power of the objective lens by the power of the ocular lens

The total magnification of an object can be found by _____________

much greater than the working distance for the 100 x objective lens

The working distance for a 10 x objective lens is ________.

Upright, with one hand on its arm and the other hand supporting its base

To transport a microscope, hold it ______________.

Coarse - focus knob

What focus knob should you first use to bring a specimen into focus when using the scanning lens?

Fine - focus knob

What focus knob should you use in order to make an image clear when using the 10 x and 40 x objective lenses?

Decreases

What happens to the field of view and working distance when the magnification increases?

Field of View

What you see when you look through the microscope (circular area)

Lowest

When studying a slide in a microscope, begin focusing with the ______-power objective lens in place.

Stage

When you want to study a slide under the microscope, you place it on the ________.

Scanning lens (lowest objective lens 4 x)

Which objective lens should you use when you first look at a slide?

Lowest-power, course

You begin your observations using the _______ lens and the ______ adjustment knob?

Iris Diaphragm Lever

arm attached to the base of the condenser that regulates the amount of light passing through the condenser

Working distance

distance between objective lens and slide/stage

Mechanical stage

holds slide in place for viewing

100 x

magnification of the oil immersion lens

40 x

magnification power of the high power objective lens - blue

10 x

magnification power of the low power objective lens - yellow

4 x

magnification power of the scanning lens (lowest objective lens - red)

Stage

platform the slide rests on while being viewed

Condenser

small sub-stage lens that concentrates the light on the specimen

Objective Lenses

these are found on the nosepiece and range from low to high power

Coarse Adjustment Knob

used to focus the specimen

Arm

vertical portion of the microscope connecting the base and head