Class 11 Physics Mechanics Mechanical Properties of Fluids



When a film of soap solution is created inside a loop formed by a rectangular wire frame and an inextensible light thread AB of length l, the thread assumes shape of a semi-circle and remains equilibrium. By pulling the midpoint of thread with a force F, the thread can be given shape of two semicircles as shown in figure. Calculate surface tension of the soap solution.

(a)
(b)
(c)
(d)
None
Correct answer: (a) 

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mechanical properties of fluids
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mechanical properties of fluids
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