Question:medium
The work done in increasing the radius of a soap bubble from \(R\) to \(2R\) is \(W\). The work done in further increasing its radius from \(2R\) to \(3R\) will be:
The work done in increasing the radius of a soap bubble from \(R\) to \(2R\) is \(W\). The work done in further increasing its radius from \(2R\) to \(3R\) will be:
Show Hint
For a soap bubble:
\[
E=8\pi TR^2
\]
because a soap bubble has two surfaces.
For a liquid drop:
\[
E=4\pi TR^2
\]
because it has only one surface.
Updated On: May 16, 2026
- \(\dfrac{5}{3}W\)
- \(\dfrac{4}{3}W\)
- \(\dfrac{7}{3}W\)
- \(W\)
Show Solution
The Correct Option is A
Solution and Explanation
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