Prove that if two bubbles of radii `r_(1)` and `r_(2)(r_(1)ltr_(2))` come in contact with each other then the radius of curvature of the common surface `r=(r_(1)r_(2))/(r_(2)-r_(1))`

Prove that if two bubbles of radii `r_(1)` and `r_(2)(r_(1)ltr_(2))` c

1.	Prove that if two bubbles of radii `r_(1)` and `r_(2)(r_(1)ltr_(2))` come in contact with each other then the radius of curvature of the common surface `r=(r_(1)r_(2))/(r_(2)-r_(1))`
Answer» Correct Answer - `r=(r_(1)r_(2))/(r_(1)-r_(2))` `(4S)/(r )= (4S)/(r_(2))-(4S)/(r_(1))` `(1)/(r )= (1)/(r_(2))-(1)/(r_(1))` `r=(r_(1)-r_(2))/(r_(1)r_(2))`

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Prove that if two bubbles of radii `r_(1)` and `r_(2)(r_(1)ltr_(2))` come in contact with each other then the radius of curvature of the common surface `r=(r_(1)r_(2))/(r_(2)-r_(1))`

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