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Grade 12Engineering Entrance Exams

Two soap bubbles have radii in the ratio of 4:3. What is the ratio of work done to below these bubbles? (a) 4:3 (b) 16:9 (c) 9:16 (d) 3:4

Profile image of Abhishek
12 Years agoGrade 12
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2 Answers

Profile image of Saurabh Koranglekar
6 Years ago
Dear student

The answer is option b

Regards
Profile image of Vikas TU
6 Years ago

The work done in blowing a soap bubble is proportional to the square of the radius.

The radii are in the ratio 4:3

Therefore the work done in blowing the soap bubble is in the ratio (4*4):(3*3) = 16:9


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