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A drop of water of volume 0.05cm^3 is pr...

A drop of water of volume `0.05cm^3` is pressed between two glass plates, as a consequence of which it spreads and occupies an area of `40cm^2`. If the surface tension of water is 70 dyne/cm, then the normal force required to separate out the two glass plates will be in newton)

A

90

B

45

C

`22.5`

D

`450`

Text Solution

Verified by Experts

The correct Answer is:
B
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