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a fine rubber band which in its unstretched condition forms a circle of radius r is dropped on a soap film formed over a wire frame when the film inside the band is broken it strecthes into a circle of radius nr if band is cut and used as single strand to suspend a mass m equilibrium elongation is equal to unstretched length surface tension of soap film is

a fine rubber band which in its unstretched condition forms a circle of radius r is dropped on a soap film formed over a wire frame when the film inside the band is broken it strecthes into a circle of radius nr if band is cut and used as single strand to suspend a mass m equilibrium elongation is equal to unstretched length surface tension of soap film is
 

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Grade:12

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