Radius of a capillary is 2xx10^(-3)m. A ...

Radius of a capillary is `2xx10^(-3)m`. A liquid of weight `6.28xx10^(-4)N` may remain in the capillary, then the surface tension of liquid will be:

`5 xx 10^(-3) N//m`

`5 xx 10^(-2) N//m`

`5 N//m`

`50 N//m`

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