When a loop of wire is dipped in a wetting liquid and is taken out. A liquid film is formed and loop of light inextensible thread is gently put on the liquid film. A hole is pricked inside the loop of thred. Due to property of suface tension , free surface of the liquid tries to minimize its surface are and hence are of the hole will be maximized. In the above description , loop wire is square of side 4 units ,liquid is soap and length of loop of thread is 15 units. If of the suface tension of soap is 'S' what is the tension inh the thread ?

When a loop of wire is dipped in a wetting liquid and is taken out. A

1.	When a loop of wire is dipped in a wetting liquid and is taken out. A liquid film is formed and loop of light inextensible thread is gently put on the liquid film. A hole is pricked inside the loop of thred. Due to property of suface tension , free surface of the liquid tries to minimize its surface are and hence are of the hole will be maximized. In the above description , loop wire is square of side 4 units ,liquid is soap and length of loop of thread is 15 units. If of the suface tension of soap is 'S' what is the tension inh the thread ?
Answer» `(S)/(4-pi)`UNITS `(S)/(8-2pi)` units `(S)/(12-pi)` units `(S)/(16 -4PI)` units Answer :B

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