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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)`)

A

2 mm

B

0.2 mm

C

0.1 mm

D

0.4 mm

Text Solution

Verified by Experts

The correct Answer is:
B
`T=(rhdg)/(2)`
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