The amount of work done in increasing the size of a soap film 10 cm × 6 cm to 10 cm × 10 cm is
Added by Dev D.
Step 1
Step 1: Calculate the initial area of the soap film, which is 10 cm x 6 cm = 60 cm². Show more…
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The amount of work done in increasing the size of a soap film $10 \mathrm{~cm} \times 6 \mathrm{~cm}$ to $10 \mathrm{~cm} \times 10 \mathrm{~cm}$ is (S.T. = $\left.30 \times 10^{-3} \mathrm{~N} / \mathrm{m}\right)$ (A) $2.4 \times 10^{-2} \mathrm{~J}$ (B) $1.2 \times 10^{-2} \mathrm{~J}$ (C) $2.4 \times 10^{-4} \mathrm{~J}$ (D) $1.2 \times 10^{-4} \mathrm{~J}$
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