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A horizontal composite capillary tube ha...


A horizontal composite capillary tube has a radius `2r` for a length `2L` and radius `r` for a length `L` as shown and is connected to a tank at one end and left free at the other end The tank contains a liquid of coefficient of viscosity `eta`. if a constant pressure difference `P` exist across the ends of the capillary tube, the volme flux thorugh the capillary tube is

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