To determine the inner radius of a uniform capillary tube is filled with mercury. A column of mercury 2.375 cm long is found to have a mass of 0.24 g. What is the inner radius r of the tube? the density of mercury is 13600 kg per meter cube and the volume of a right circular cylinder is π r^2 h. (answer : 0.49mm)
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Verified answer
Formulas:
The mass density of a material is its mass per unit volume:
The volume of a right circular cylinder is
Given:
Solution:
Combining the formulas and solving for that inner radius, we get