Physics Help Forum Relative uncertainty

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 Mar 14th 2009, 07:16 PM #1 Junior Member   Join Date: Dec 2008 Posts: 5 Relative uncertainty The radius of a sphere is measured with an uncertainty of 1%. What is the percentage uncertainty in the volume?
 Mar 14th 2009, 11:09 PM #2 Senior Member   Join Date: Apr 2008 Location: HK Posts: 886 You should know the equation of volume of sphere is $\displaystyle V=\frac{4\pi r^3}{3}$ Percentage error of volume = (power of r )X( percentage error of r) =3X1% =3%

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