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A liquid rises to a height of 50 cm in a...

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)`

A

`4.17 (N )/(m ) `

B

`0.417 (N )/(m)`

C

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

D

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

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • A liquid rises to a height of 50cm in a capillary tube of diameter 0.04mm. If density of liquid is 0.8xx10^(3)kgm^(3) and angle of contact is 20^(@) , the surface tension of the liquid is (Cos20^(@)=0.94)

    A
    `4.17(N)/(m)`
    B
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    B
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