1.

A liquid rises to a height of 50 cm in a capillary tube of diameter 0.04mm. If density of liquid is 0.08 xx 10^3 kg m^(-3) angle of contact is 20°, the surface tension of the liquid is (cos 20^@= 0.94)

Answer»

`4.17(N )/(m ) `
`0.417(N )/(m)`
`4.17 XX 10^(-2) (N )/(m)`
`4.17 xx 10^(-3)(N )/(m )`

ANSWER :C


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