Question

HELP PLEASE!

Answer 1

lets say a diameter d of an object is 0.91+/- 0.01m then, 1/d^2 will be 1.21 m^-2.
What will be the absolute uncertainty in 1/d^2.
Please explain.

Answer 2

there's a really concise resource here:
http://web.uvic.ca/~jalexndr/192UncertRules.pdf

Basically:


remembering that:



if you need help with actual application, do ask.

if you know a bit of calculus the derivation of this stuff is brief. if not, i guess you will get some intuition,......, i mean rather than relying on remembering formulae....