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A soap bubble with a radius 'r' is placed on another bubble wi
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A soap bubble with a radius 'r' is placed on another bubble with a radius R (figure) Angles between the films at the points of contact will be:
Surface tension

A

B

C

D

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A soap bubble with a radius 'r' is placed on another bubble with a radius R (figure) Angles between the films at the points of contact will be:
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Look at a very small element at the junction of 3 bubbles.
All 3 forces of same magnitude ( surface tension is same) are acting along the tangential directions on the small element.
Now any LAMIE's theorem
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Question Text
A soap bubble with a radius 'r' is placed on another bubble with a radius R (figure) Angles between the films at the points of contact will be:
TopicMechanical Properties of Fluids
SubjectPhysics
ClassClass 11
Answer TypeText solution:1
Upvotes146