MHT CET Physics question
A soap bubble of radius 'R' is blown. After heating the solution, a second bubble of radius '2R' is blown. The work required to blow the second bubble in comparison to that required for the first bubble is [MHT-CET 2023]
Answer: (B)
Solution
, so doubling the radius gives 4 times the work at constant T; heating lowers T, so the work is slightly less than 4
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