M1 & M2: MICROSCOPE & CALCULATIONS

Question 1

an instrument for viewing what is small

Answer 1

MICROSCOPIUM

Question 2

the word microscope came from the greek word

Answer 2

SKOPION “means of viewing”

Question 3

WHAT DOES SKOPION MEANS

Answer 3

MEANS OF VIEWING

Question 4

SKOPION came from the word

Answer 4

SKOPEIN “look at”

Question 5

WHAT DOES SKOPEIN MEANS

Answer 5

LOOK AT

Question 6

CONTAINS THE OCULAR LENS which you will be looking through to see the magnified specimens with magnification raging from 5X to 30X, but 10X or 15X is the most common in use.

Answer 6

EYEPIECE

Question 7

provides a RE-MAGNIFIED IMAGE to see when light enters through the objective lens.

Answer 7

OCULAR LENS

Question 8

It CONNECTS the EYEPIECE AND OCULAR LENS to the OBJECTIVE LENSES

Answer 8

EYEPIECE TUBE

Question 9

It connects the EYEPIECE TUBE TO THE BASE where you should hold when carrying the microscope.

Answer 9

MICROSCOPE ARM

Question 10

It provides STABILITY AND SUPPORT for the microscope in its upright position. Typically, it HOLDS THE SOURCE OF LIGHT or illuminator.

Answer 10

MICROSCOPE BASE

Question 11

It is a LIGHT SOURCE which can come in a form of a built-in, low voltage illuminator light, or a mirror that reflects an external light source like sunlight.

Answer 11

ILLUMINATOR

Question 12

It serves as the PLATFORM FOR SLIDES. Some has mechanical stage with adjustment knobs that allow movement of slides to achieve more precise positioning.

Answer 12

STAGE

Question 13

HOLD THE SPECIMEN IN PLACE on either side.

Answer 13

STAGE CLIPS

Question 14

It CONTAINS THE OBJECTIVE LENSES. You can rotate this part in switching objective lenses and adjust the magnification power.

Answer 14

NOSEPIECE

Question 15

Generally, microscope feature three or four _______, with magnification levels ranging 4X to 100X. _____ are combining with the eyepiece lens to INCREASE MAGNIFICATION LEVELS. ______ are the lenses that PROTRUDE DOWNWARD over the specimen.

Answer 15

OBJECTIVE LENSES

Question 16

magnification level of SCANNING lens

Answer 16

4X

Question 17

magnification level of LPO lens

Answer 17

10X

Question 18

magnification level of HPO lens

Answer 18

40X

Question 19

magnification level of OIO lens

Answer 19

100X

Question 20

It PREVENTS users from MOVING OBJECTIVES TOO CLOSE TO THE SLIDE

Answer 20

RACK STOP

Question 21

used to bring the specimen into INITIAL FOCUS – visible but not sharp

Answer 21

COARSE ADJUSTMENT KNOB

Question 22

turned to bring the specimen into SHARP FOCUS.

Answer 22

FINE ADJUSTMENT KNOB

Question 23

adjusts the distance between the stage and the lens

Answer 23

KNOBS

Question 24

CONCENTRATES THE LIGHT on the specimen

Answer 24

CONDENSER

Question 25

a SMALL MOVABLE LEVER is adjusted that REGULATES THE ENTRY OF LIGHT.

Answer 25

DIAPHRAGM

Question 26

the MEASURE for the ABILITY TO TELL TWO POINTS APART. It describes whether two adjoining points can still be perceived as separate.

Answer 26

POWER OF RESOLUTION

Question 27

the product of Vobjective X Vocular

Answer 27

MAGNIFICATION OF A MICROSCOPE

Question 28

the SINE OF HALF THE ANGLE of the cone of light from each point of the object that can be accepted by the objective multiplied by the index of refraction of the medium in which the object is immersed.

Answer 28

NUMERICAL APERTURE

Question 29

refers to the DISTANCE FROM THE COVER GLASS to the nearest point of the objective.

Answer 29

WORKING DISTANCE

Question 30

refers to the DISTANCE BETWEEN THE UPPER AND LOWER LIMITS OF SHARPNESS in the image formed by an optical system.

Answer 30

FOCAL DEPTH

Question 31

This is a number that REPRESENTS THE DIAMETER IN MM of the image of the field diaphragm that is formed by the lens in front of it.

Answer 31

FIELD NUMBER

Question 32

The ACTUAL SIZE OF THE FIELD OF VIEW in mm on the object surface

Answer 32

FIELD OF VIEW DIAMETER

Question 33

Magnifying an object WITHOUT GOOD RESOLUTION is called _________

Answer 33

EMPTY MAGNIFICATION

Question 34

FORMULA FOR TOTAL MAGNIFICATION

Answer 34

Vobjective x Vocular

Question 35

magnification of OCULAR LENS

Answer 35

10X

Question 36

FOV using EYEPIECE only

Answer 36

magnification / field number (20) ***expressed in mm

Question 37

FOV using EYEPIECE & OBJECTIVE LENS

Answer 37

Vocular x Vobjective = ans field number (20) / ans ***expressed in mm

Question 38

refractive index n of air

Answer 38

1

Question 39

refractive index n of water

Answer 39

1.33

Question 40

refractive index n of glycerin

Answer 40

1.47

Question 41

refractive index n of oil

Answer 41

1.518

Question 42

refractive index n of oil 444067

Answer 42

1.66

Question 43

formula for ACTUAL SIZE of the cell

Answer 43

dFOV (usually 2mm) / no. of cells na nakikita within the FOV ***if naka micrometer, conver to mm ***if naka mm, convert to micrometer ***usually expressed in mm (depends on the given intsruction)

Question 44

formula for DRAWING MAGNIFICATION

Answer 44

drawing size / actual size in um ***if naka mm, convert to um