What happened to the water level in the capillary tube ?
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Explanation:
When a liquid wets the container walls, it causes capillary elevation – liquid level in the capillary is higher than the liquid level outside the capillary. Non-wetting liquids cause capillary depression – the liquid level drops below the level outside the capillary.
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Answer:
When a capillary tube is lowered, the water outside it is raised due to more volume of tube inserted in it. If the radius is doubled , then the periphery of tube is also doubled, doubling its volume. ∴ water rising outside, hence, is 10 gm
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