Questions
A bubble having surface tension. T and radius R is formed on a ring of radius . Air is blown inside the tube with velocity v as shown. The air molecule collides perpendicularly with the will of the bubble and stops. Calculate the radius at which the bubble separates from the ring
detailed solution
Correct option is A
The bubble will separate from the tube when thrust force exerted by the air is equal to the force due to excess pressure. F=PA ρAv2=4TRA∴ R=4Tρv2Talk to our academic expert!
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