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im a lady thanks a lot ,,,,thanx bro it helps a lot........if u dont mind cn u help me with [papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s11_qp_51.pdf] question 2 part b uncertainities ]
Q 2 part b,,,,first calculate 1/h then find uncertainity in h by the formula (DELTA)h/ h nd multiply this uncertainity with 1/h that u got b4....
eg for 400 +/- 5.....1/h will be inverse of 400 x 10 ^ -3 which is 2.5....now for the uncertainity calculate fractional error...5/400 (notice that 10^-3 in the denominator and numerator cancels out so u dont need to put it in calculation) =0.0125....now multiply this with ure final ans of h inverse i.e : 2.5 x 0.0125 =0.03125,,,,,there u go...uncertainity will be upto 1 s.f and the value will be to the same no# of d.p...therefore answer is 2.50 +/- 0.03
i really hope i havent made it very complicated