A drop of some liquid of volume 
is placed on the surface of a glass slide. Then another glass slide is placed on it in such a way that the liquid forms a thin layer of area 
between the surfaces of the two slides. To separate the slides, a force of 
dyne has to be applied normal to the surfaces. The surface tension of the liquid is (in dyne- 
)
Text Solution
Verified by ExpertsThe correct answer is:
C
Let, thickness of layer be x.
So, volume 
Area 
… (i)
And 
We know that 
[from Eq. (i)]
Where, 
dyne, 
,
dyne 
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