A vessel has a small hole at its bottom....

A vessel has a small hole at its bottom. If water can be poured into it upto a height of 7 cm without leakage `(g=10ms^(-2)`) the radius of the hole is (surface tension of water is `0.7Nm^(-1)`)

2 mm

0.2 mm

0.1 mm

0.4 mm

Text Solution

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The correct Answer is:

`T=(rhdg)/(2)`

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