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Surface Tension & Energy

Quick practice

Question 1 of 5

A 10 cm long wire is placed horizontally on the surface of water and is gently pulled up with a force of 2 ×10^{-2} N to keep the wire in equilibrium. The surface tension, in N/m, of water is 

A

0.002 

B

0.2 

C

0.1     

D

0.001 

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