Physics - Fluid Question with Solution | TestHub

Consider a soap film on a rectangular frame of wire of area $3\times 3{\mathrm{cm}}^2$. If the area of the soap film is increased to $5\times 5{\mathrm{cm}}^2$, the work done in the process will be (surface tension of soap solution is $2.5\times 10^{-2}\mathrm{N}/\mathrm{m}$ )