A drop of liquid pressed between two glass plate spreads to a circle of diameter 10cm. Thickness of liquid film is 0.5mm and coefficient of surface tension is 70xx10^(-3)Nm^(-1). The force required to pull them a part is

A drop of liquid pressed between two glass plate spreads to a circle o

1.	A drop of liquid pressed between two glass plate spreads to a circle of diameter 10cm. Thickness of liquid film is 0.5mm and coefficient of surface tension is 70xx10^(-3)Nm^(-1). The force required to pull them a part is
Answer» 4.4N 1.1N 2.2N 2.6N Answer :C