In increasing the area of film …
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Gaurav Seth 6 years, 1 month ago
Q : In increasing the area of the film of soap solution from 50cm^2to 100cm^2,3.0×10^-4J of work is done.calculate the value of surface tension of the soap
Answer:
Surface tension = work done / change in area
= 3*10-4/{(100-50)*10-4}
= 3/50 = 0.06 N/m
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