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The air pressure inside a soap bubble of diameter 3.5 mm is 8 mm of water above the atmosphere. Calculate the surface tension of soap solution.​

Answer» E = 2T÷rdiameter ÷ 2 =radiusr=3.5÷2 =1.75pressure ×r =TT= 4.5 × 1.75 = 7.875 where T is the SURFACE TENSION


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