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Calculate the force required to separate...

Calculate the force required to separate the glass plates of area `10^(-2)m^(2)` with a film of water 0.05 mm thickness between them (surface tension of water `=70xx10^(-3)N//m)`)

A

28 N

B

14 N

C

50 N

D

38 N

Text Solution

Verified by Experts

The correct Answer is:
A
` F = (Txx2A)/t = (70xx10^(-3)xx2 xx 10^(-2))/(5xx10^(-5)) = 28 N `
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