A quick question about uncertainties and significant figures:
Say, we have some numbers with a particular uncertainty 0.1 of each of them. What happens if the sum of these numbers has a greater amount of significant figures than each of the numbers alone? For instance,
1.01 + 9.99 = 11.0...
I am trying to find F, i have L = 60cm and U = 31cm, how would i calculate f (focal length)?
and also how would i find the uncertainties?
thank you very much