No info about surface tension. even answer is in terms r and R.Dadface said:What do you know about surface tension?
yeah;Dadface said:So do you know the answer?
Dadface said:Surface tension does come into it but in this problem it cancels out.Have you studied surface tension?
Wow!Dadface said:Good,so you should know that the pressure inside a bubble is greater than the pressure outside.Now apply that pressure difference formula to the bubbles when they are in contact.There are three radii of relevance r,R and the common radius over their area of contact.
vkash said:Wow!
great;
i have got the answer.
thanks for helping me.
The radius of curvature at the contact point of a soap bubble is the distance from the center of the bubble to the point where the bubble touches a surface or another bubble.
The radius of curvature at the contact point of a soap bubble can be calculated using the Young-Laplace equation, which takes into account the surface tension and pressure difference between the inside and outside of the bubble.
The radius of curvature at the contact point of a soap bubble is a measure of the curvature of the bubble's surface at that point. It can also provide information about the surface tension and pressure inside the bubble.
As a soap bubble grows, the radius of curvature at the contact point decreases, meaning the bubble becomes more spherical. As it shrinks, the radius of curvature increases, causing the bubble to become more flattened.
The radius of curvature at the contact point of a soap bubble affects the stability and behavior of the bubble. It is also crucial in understanding the physics behind soap films and bubbles, and has applications in various industries such as soap making and bubble technology.