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in Physics by (52.1k points)

A ring of internal and external radius 85 mm and 87mm is suspended from one pan of a balance which is counterpoised. The ring is made to touch surface of water in a beaker. An additional weight of 3.96 g has to be added to the other pan to counterpoise the balance. What is surface tension of water?

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1 Answer

+1 vote
by (51.7k points)

Correct answer is 72 x 10-1 Nm-1

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