L vs E Flashcards
1
Q
Wavelength Used
A
Light - 400-700ûm
Electron - 0.004ûm
2
Q
Magnification
A
L- 2000
TEM - 2,000,000
SEM - 200,000
3
Q
Resolution
A
L - 200nm
TEM - 0.2nm
SEM - 2nm
4
Q
For focussing
A
L - Lenses
E - Electromagnets
5
Q
Cost to purchase
A
L - Cheap
E - Expensive
6
Q
Cost to run
A
L - Cheap
E - Expensive
7
Q
Easy prep?
A
L - can be none
E - lots
8
Q
Vacuum required?
A
L - no
E - yes
9
Q
Material distorted?
A
L - not usually
E - always some
10
Q
Living or dead material?
A
L - either
E - dead
11
Q
Image colour observed?
A
L - yes, natural or stained
E - no, monochrome
