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A 10 cm long wire is placed horizontal o...

A 10 cm long wire is placed horizontal on the surface of water and is gently pulled up with a force of `2xx10^(-2)` N to keep the wire in equilibrium. The surface tension, in `Nm^(-1)` of water is

A

0.002

B

0.001

C

0.2

D

0.1

Text Solution

Verified by Experts

The correct Answer is:
C
`F = T xx 2l, T = 2xx 10^(-2)//2 xx (10//100) = 0.1` N
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