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A certain num...

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A certain number of spherical drops of a liquid of radius r coalesce to form a single drop of radius R and volume V. If T is the surface tension of the liquid then 1. Energy =4VT(1/r - 1/R) is released 2. Energy =3VT(1/r + 1/R) is released 3. Energy =3VT(1/r - 1/R) is released 4. Energy is neither released nor absorbed

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