- #1
lavster
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Homework Statement
let a=360.9±0.1, let b=180.4±0.1, let c=212.5±0.13 and let d=211.7±0.16
whats f (including uncertainty) where
f-1 = ((a/b)-1)/((c/d)-1)
Homework Equations
add the percentage uncertainties in quadrature if dividing two variables
add the absolute uncertainties in quadrature of adding two variables?
The Attempt at a Solution
from plugging in the numbers f=1.0038
the percentage uncertainty for a is 0.03%
the percentage uncertainty of b is 0.06%
adding this in quadrature gives 0.07% (call this y)
the percentage uncertainty for c is 0.063136037%
the percentage uncertainty of d is 0.077617746%
adding this in quadrature gives 0.1% (call this z)
now find the uncertainty of the quotient of these is adding y and z in quadrature giving 0.12%
therefore f=1.0038±0.0012
is this correct?!
thanks