2.1.1 Cell Structure – Magnification Flashcards
(9 cards)
1
Q
What is the formula for magnification?
A
Magnification = size of image/size of object
2
Q
What is the definition of magnification?
A
Magnification is the number of times the image is bigger than the object.
3
Q
What is the definition of resolution?
A
Resolution is the measure of microscope to distinguish between two points that are close together as separate and increase clarity
4
Q
What measurement has the units µm?
A
Micrometres
5
Q
What measurement has the units nm?
A
Nanometres
6
Q
How many micrometres in one millimetre?
A
1000
7
Q
How many nanometres in one micrometre?
A
1000
8
Q
How many nanometres in one millimetre?
A
1,000,000
9
Q
How do you measure the length of a specimen using a microscope?
A
- Place an eyepeice graticule which has scale 1 to 100 but has no units
- Calibrate (compare) against stage micrometer by aligning it to the eyepeice graticule
- The stage micrometer has units
- 30 divisions on eyepeice is equal to 10 divisions on stage micrometer
