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JEE Main 2014 Physics question

PhysicsMechanical Properties of FluidsJEE Main 2014

Two soap bubbles coalesce to form a single bubble. If V is the subsequent change in volume of contained air and S change in total surface area, T is the surface tension and P atmospheric pressure, then which of the following relation is correct?

Answer: (2)

Solution

For each bubble the trapped air is at , and at constant temperature the total PV is conserved: . This

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Question ID VK-104534