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Platinum wire rings of radius 2.5 cm flo...

Platinum wire rings of radius 2.5 cm floats horizontally on the surface of water. A vertical force of 0.022 N is required to detach the ring from the surface of water. Find the surface tension of water

A

0.7 N/m

B

0.75 N/m

C

0.07 N/m

D

0.80 N/m

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The correct Answer is:
C
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