A wire of mass 1g is kept horizontally o...

A wire of mass `1g` is kept horizontally on the surface of water. The length of the wire that does not break the surface film is (surface tension of water is `70dynecm^-1`)

3 cm

4 cm

7 cm

14 cm

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ALLEN -RACE-Basic Maths (Properties of Matter & Fluid Mechanics)(Surface Tension)

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