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percentage uncertainity

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hafza89:
guys how do we calculate uncertainities and percentage uncertainities

Blue_Ice:
% uncertainty= actual(absolute)uncertainty/ true value

and when u r doing an experiment and u want to find the absolute uncertainty, repeat a certain measurement twice, then

absolute uncertainty= 1/2 (range)

the range is the difference between the two mesurements

phoolan_rani:
then we no need to see smallest division on d ruler or any equipment....

Blue_Ice:
u can do tht too  :D

absolute uncertainty= smallest division/ true value

both r correct  ;)

barca fever:

--- Quote from: Blue_Ice on June 03, 2009, 02:36:32 pm ---and when u r doing an experiment and u want to find the absolute uncertainty, repeat a certain measurement twice, then
absolute uncertainty= 1/2 (range)
the range is the difference between the two mesurements


--- End quote ---
explain absolute uncertainity.......o.5 [range]
i dont get it

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