`While measuring the surface tension of a liquid by a capillary of non uniform bore its radius should be measured : A at the lower end dipped in liquid B) at the yuper end open in air c) by taking mean of the radial at the two ends b) by cutting the capillary at the point up to which the liquid rises in the capillary`
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While measuring the surface tension of a liquid by a capillary of nonuniform bore its radius should be measured by cutting the capillary at the point up to which the liquid rises in the capillary.
What is a capillary rise method?
- Capillary rise is a method to determine the surface tension of water.
- In this method, water is filled in the tubes and then fixed at a certain height through an adjustable stand.
- After that, the water surface tension is measured by emptying it into a beaker after losing the clamps.
So, the correct option is (d): By cutting the capillary at the point up to which the liquid rises in the capillary.
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