(A) 0.5 mmTwo soap bubble of radius 2r and 3r are in contact with each – InterviewSolution

1.	(A) 0.5 mmTwo soap bubble of radius 2r and 3r are in contact with each other. The radius of curvature of the interfacebetween the bubble is:(A) 2r(B) r(C) 3rhubble of radius 2R as shown Take surface
Answer» Radius of curvature of common surface is r¹r²/r²-r¹= 2r3r/3r-2r=6r

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