Formulae Flashcards
(4 cards)
1
Q
mag generic formula
A
i
a m
a = I/M
2
Q
1 graticule division / calibration factor / magnification factor
A
number of um in micrometre ÷ number of graticule divisions on epg
3
Q
length of object (um)
A
= number of divisions covered by object ⨯ magnification factor
4
Q
Total mgf?
A
Eyepiece mgf × objective mgf
