A drop of liquid pressed between two
glass plates spreads to a circle of
diameter 10cm. Thickness of liquid film
is 0.5mm and coefficient of surface
tension is 70 x 10-3 Nm-1. The force
required to pull them a part is
(A) 4.4N
(B) 1.1N
(C) 2.2N
(D) 2.6N
Answers
Answered by
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Answer:
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Answered by
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Answer:
The answer is 2.2N.
c) 2.2N
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