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A drop of liquid pressed between two glass plates spreads to a

Question

A drop of liquid pressed between two glass plates spreads to a circle of diameter $8 c m$ . Thickness of liquid film is $0.4 mm$ and coefficient of surface tension is $70 \times 1 0^{- 3} N m^{- 1}$ . The force required to pull them apart

1.1 N

1.75 N

2.75 N

3.75 N

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A drop of liquid pressed between two glass plates spreads to a circle of diameter

8 c m

. Thickness of liquid film is

0.4 mm

and coefficient of surface tension is

70 \times 1 0^{- 3} N m^{- 1}

. The force required to pull them apart

14 mins ago

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Question Text	A drop of liquid pressed between two glass plates spreads to a circle of diameter $8 c m$ . Thickness of liquid film is $0.4 mm$ and coefficient of surface tension is $70 \times 1 0^{- 3} N m^{- 1}$ . The force required to pull them apart
Answer Type	Video solution: 1
Upvotes	151