A soap - bubble with a radius `'r'` is placed on another bubbles with a radius `R` (figure). Angles between the film at the point of contact will be -

A soap bubble of radius r is placed on another bubble of radius 2r . The radius of the surface common to both the bubbles is

A soap bubble of radius r is placed on another bubble of radius 2r . The radius of the surface common to both the bubbles is

A soap bubble of radius r_(1) is placed on another soap bubble of radius r_(2)(r_(1) lt r_(2)) . The radius R of the soapy film separating the two bubbles is :

A soap bubble of radius R is surrounded by another soap bubble of radius 2R, as shown. Take surface tension = S.

Two soap bubbles with radius 2r and 3r come in contact. Their common surface has a radius of curvature nr , then find the value of n

A soap bubble of radius r is formed inside another soap bubble of radius R (gt r) . The atmospheric pressure is P_(0) and surface tension of the soap solution is T. Calculate change in radius of the smaller bubble if the outer bubble bursts. Assume that the excess pressure inside a bubble is small compared to P_(0) .

A soap bubble A of radius 0.03 m and another bubble B of radius 0.04 m are brought together, so that the combined bubble has a common interface of radius r, then the value of r is

A soap bubble A of radius 0.03 m and another bubble B of radius 0.04 m are brought together, so that the combined bubble has a common interface of radius r, then the value of r is