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A 10 cm long wire is placed horizontally...

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

A

`0.002`

B

`0.001`

C

`0.2`

D

`0.1`

Text Solution

Verified by Experts

The correct Answer is:
D
` T = F/T = (2xx 10^(-2))/(2 xx 0.1) = 10^(-1)N//m`
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