A drop of water of mass m and density ρ is placed between two well cleaned glass plates, the distance between which is d. what is the force of attraction between the plates ?(T = surface Tension )

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Tm2ρd2

4Tmρd2

2Tmρd2

Tmρd2

answer is C.

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Detailed Solution

F=2TA/d; m=ρV=ρAd⇒A=mρd

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