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Flashcards in The Microscope- Lab 1 Deck (17)
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1

What does the light rheostat knob do?

Adjusts light

2

What does the condenser do?

Focuses light on the specimen

3

What does the iris diaphragm lever do?

Adjusts the light to provide contrast

4

What does the stage do?

Holds specimen

5

What does the stage adjustment knob do?

Adjusts stage

6

What does the arm do?

Part of the two hand hold

7

What do the objective lenses do?

Magnifys the specimen

8

What kind of lens is the 4X?

Scanning lens (Red)

9

What kind of lens is the 10X?

Low dry lens; the bacteria scanning lens (Yellow)

10

What does the base do?

Supports the microscope

11

What kind of lens is the 40X?

High dry lens (Blue)

12

What kind of lens is the 100X?

Oil immersion lens (black/white)

13

What are the ocular lenses?

Magnification of the specimen (10X)

14

What does the coarse & fine focus do?

Focuses the specimen

15

Define total magnification

Objective lens (10X) X Ocular lens

16

Define resolution

The ability to distinguish between objects that are close together.

17

Define contrast

The differences in intensity between 2 objects or between an object & its background