1.

Water rises in a capillary tube to a certain height such that the upward force due to surface tension is balanced by 75xx10^(-4)N force due to the weight of the liquid. If the surface tension of water is 6xx10^(-2)Nm^(-1), the inner circumference of the capillary must be

Answer»

`1.25xx10^(-2)m`
`0.50xx10^(-2)m`
`6.5xx10^(-2)m`
`12.5xx10^(-2)m`

ANSWER :D


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