- 1(current)
Q. No.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. |
Subtopic: Â Surface Tension |
 72%
From NCERT
AIPMT - 2014
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The wettability of a surface by a liquid depends primarily on:
| 1. | surface tension. |
| 2. | density. |
| 3. | angle of contact between the surface and the liquid. |
| 4. | viscosity. |
Subtopic: Â Surface Tension |
 85%
From NCERT
AIPMT - 2013
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Q. No.
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