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 \(= 4{VT}\left( \frac{1}{{r}} - \frac{1}{{R}}\right)\) is released. |
2. | energy \(={ 3{VT}\left( \frac{1}{{r}} + \frac{1}{{R}}\right)}\) is released. |
3. | energy \(={ 3{VT}\left( \frac{1}{{r}} - \frac{1}{{R}}\right)}\) is released. |
4. | energy is neither released nor absorbed. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | surface tension. |
2. | density. |
3. | angle of contact between the surface and the liquid. |
4. | viscosity. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology