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A circular loop of a thin wire of radius...

A circular loop of a thin wire of radius 7 cm is lifted from the surface of a liquid. An additional force of `44xx10^-2` N is required to detach the loop from the surface of the liquid. The surface tension of the liquid ib n `N//m` is

A

0.5

B

1

C

2.86

D

6.826

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