The radii of two soap bubbles are R_(1)andR_(2). If they coaleasce, then the radius of curvature of the common surface will be

The radii of two soap bubbles are R_(1)andR_(2). If they coaleasce, th

1.	The radii of two soap bubbles are R_(1)andR_(2). If they coaleasce, then the radius of curvature of the common surface will be
Answer» `R_(2)-R_(1)` `R_(1)R_(2)` `(R_(1)+R_(2))/(2)` `(R_(1)R_(2))/(R_(2)-R_(1))` ANSWER :D