A straight piece of wire 5 cm long is placed horizontally on the surface of water and gently pulled up. It is found that a force of 7xx10^(-3)N in addition to weight of wire is required for that purpose, the surface tension of water is

A straight piece of wire 5 cm long is placed horizontally on the surfa

1.	A straight piece of wire 5 cm long is placed horizontally on the surface of water and gently pulled up. It is found that a force of 7xx10^(-3)N in addition to weight of wire is required for that purpose, the surface tension of water is
Answer» `7XX10^(-2)N//m` `7xx10^(-1)N//m` `7xx10^(-3)N//m` `3.5xx10^(-2)N//m` ANSWER :A