If a capillary tube of radius r is immersed in a liquid, then the liquid rises to a height h . The corresponding mass of liquid column is m . The mass of water that would rise in another capillary tube of twice the radius is

Question

If a capillary tube of radius r is immersed in a liquid, then the liquid rises to a height h . The corresponding mass of liquid column is m . The mass of water that would rise in another capillary tube of twice the radius is, 2 m, 5 m, 3 m, 4 m

MARKS App · Accepted Answer

Force due to surface tension = 2 π r T This force supports the weight ⇒ 2 π r T = m g ⇒ m ∝ r As radius r doubles, weight supported will also doubles

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