The tolerance limits on the radii of the inner and outer cylinders of Fig. 9.9 exert a strong influence on the accuracy of the viscosity measurement. Establish a relation expressing the percent uncertainty in the viscosity measurement as a function of the uncertainty in these radius measurements. Assume that the torque, angular velocity, and bottom-spacing measurements are exact for this calculation. Assume that the uncertainty (tolerance) is the same for both cylinders.
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