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2.)Force necessary to pull a circular plate of 5cm radius from water surface for which surface tension is 75 dynes/cm, is3.)A square frame of side L is dipped in a liquid. On taking it out, a membrane is formed. If the surface tension of the liquid is T, the force acting on the frame will be4.)The material of a wire has a density of 1.4 g per cm3. If it is not wetted by a liquid of surface tension 44 dyne per cm, then themaximum radius of the wire which can float on the surface of the liquid is
Dear student Please ask one question in one thread. Answer of 1st question F = T * I = 75 * 2 * r = 150 * 5 = 750 dynes Hope it helps Regards Arun (askIITians forum expert)
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