Two plane glass testing slides each of surface area A are stuck...

Two plane glass testing slides each of surface area A are stuck with each other by a small water drop squeezed between them as an extremely thin film of thickness d . If the surface tension of water be T and the angle of contact be zero, then the force required to pull apart the two glass plates will be

Options

A $\frac{8 \mathrm{TA}}{\mathrm{d}}$
B $\frac{4 \mathrm{TA}}{\mathrm{d}}$
C $\frac{2 \mathrm{TA}}{\mathrm{d}}$
D $\frac{\mathrm{TA}}{\mathrm{d}}$

Correct answer

C. $\frac{2 \mathrm{TA}}{\mathrm{d}}$

Step-by-step solution

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