A large vessel having a very small circular hole of diameter 1 mm at the bottom is filled with water. Up to what maximum height (in cm) water can be filled in the vessel so that there is no leakage? [surface tension of water = 7 .5 x 10 -2 N m -1 and g = 10 m s -2 ]
Text Solution
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(3)
Water will not leak out from the hole if the weight of water in the water column is supported by the force
due to surface tension.
Using the relation,
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