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P, Q and R are three capillary tubes. If these are dipped in water.(a) Which has greater capillary rise? (b) Which factor influenced capillary rise? (c) Why is the land ploughed before the beginning of summer? |
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Answer» (a) In R (b) Diameter of the tube (c) When the land is ploughed the separation between the soil particles increases. The diameter of the capillary tubes formed in the soil increases. So the capillary rise decreases. This help to retain moisture in the soil. |
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