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Question

Two spherical soap bubbles coalece. If V is the consequent change in volume of the contained air and S is the change in the total surface area and T is the surface tension of the soap solution then

(if P0 is atmospheric pressure)
[Assume the temperature of the air remain same in all the bubbles]

A
3P0V+4ST=0
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B
4P0V+3ST=0
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C
P0V+4ST=0
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D
4P0V+ST=0
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Solution

The correct option is A 3P0V+4ST=0
1966067_293434_ans_e4c9c59023a94fd691dfd74373feb4a4.jpg

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