Parts of Microscope

Question 1

Screw that locks the head of the microscope

Answer 1

Observation Tube Clamping Screw

Question 2

Used to clean glass and objective lenses

Answer 2

Lens Paper

Question 3

3 factors for Resting Mode

Answer 3

1. Eyepiece should be close together
2. Stage is moved up
3. Objective should be Scanner

Question 4

Part of microscope where the viewer looks through to see the specimen

Answer 4

Eyepiece

Question 5

Commonly used eyepiece magnification

Answer 5

10x

Question 6

Distance between the two eyepieces

Answer 6

Interpupillary Distance

Question 7

A means to change focus on one eyepiece to correct for any difference in vision between the two eyes

Answer 7

Diopter Ring

Question 8

Connects the eyepiece to the objective lenses. aka as the Head

Answer 8

Body Tube

Question 9

Connects the body tube to the base of the microscope

Answer 9

Arm

Question 10

Brings the specimen into general focus

Answer 10

Coarse Adjustment Knob

Question 11

Ability of the microscope to stay in focus, even though objective lenses are changed

Answer 11

Parfocality

Question 12

Fine tones the focus and increases the details of the specimen

Answer 12

Fine adjustment knob

Question 13

Rotating turret that houses the 4 objective lenses

Answer 13

Nose Piece

Question 14

4 objective lenses

Answer 14

Scanner (4x)
Low Power Objective (10x)
High Power Objective (40x)
Oil Immersion Objective (100x)

Question 15

Ability of the objective lenses to gather light and resolve the fine adjustment of the specimen

Answer 15

Numerical Aperture

Question 16

Diameter of the image observed, usually in millimeters

Answer 16

Field Number

Question 17

Objective with Red band

Answer 17

Scanner

Question 18

Objective with Yellow band

Answer 18

Low Power Objective

Question 19

Objective with Blue band

Answer 19

High Power Objective

Question 20

Objective with White/Black band

Answer 20

Oil Immersion Objective

Question 21

Objective with Green band

Answer 21

5 Lens Microscope

Question 22

Flat platform where the slide or specimen is placed

Answer 22

Stage

Question 23

Hole in the middle of the stage that allows light from illuminator to reach the specimen

Answer 23

Aperture

Question 24

Turns the illuminator on or off

Answer 24

Switch

Question 25

Adjusts the intensity of illuminator

Answer 25

Rheostat

Question 26

Controls the amount of light that reaches the specimen

Answer 26

Iris Diaphragm

Question 27

Used to collect and focus light from the illuminator on the specimen

Answer 27

Condenser

Question 28

Calibration of Rheostat and Condenser for Colorless Specimens

Answer 28

Rheostat - Max Condenser - Fully closed

Question 29

Calibration of Rheostat and Condenser for Colored Specimens

Answer 29

Rheostat - Max Condenser - Half Open or Half Closed

Question 30

Oil used for Oil Immersion Objective

Answer 30

Cedarwood Oil

Question 31

Refractive Index of Cedarwood Oil

Answer 31

1.52

Question 32

Used to avoid slide and lenses from colliding

Answer 32

Pre-focusing knob