3.3 Microscope measurements + calculations

Question 1

m.e.g. at x4 ob:

Answer 1

x4ob = 40 total
4 division in 100 μm
1 division = 25 μm

Question 2

m.e.g. at x10 ob:

Answer 2

x10ob = 100 total
10 divisions in 100 μm
1 division = 10 μm

Question 3

m.e.g. at x40 ob:

Answer 3

x40 ob = 400 total
40 divisions in 100 μm
1 division = 2.5 μm

Question 4

equation to calculate magnification:

Answer 4

magnification = image size/actual size

Question 5

equation to calculate image size:

Answer 5

image size = actual size x magnification

Question 6

equation to calculate actual size:

Answer 6

actual size = image size/magnification

Question 7

how to calculate magnification using the scale bar:

Answer 7

measure scale bar
the scale bar has a size written on it
magnification = length of scale bar/the actual size given