A soap film in formed on a frame of area 4×10-3m2 . If the area of the film in reduced to half, then the change in the Potential energy of the film is (surface tension of soap solution = 40×10-3 N / m )
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A soap film in formed on a frame of area 4×10-3m2 . If the area of the film in reduced to half, then the change in the Potential energy of the film is (surface tension of soap solution = 40×10-3 N / m )