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If the liquid rises in a capillary tube of radius 0.1 mm to a height of 6 cm . The angle of contact between the glass and turpentine is `17^(@)` and density of is 870 `kg//m^(3)` , g = 9.8 `m//s^(2)` . Then the surface tension of turpentine is , ( cos 17 = 0.9563)

A

`0.026` N/m

B

`2.6 ` N/m

C

`0.26` N/m

D

`2.6` dyne/cm

Text Solution

Verified by Experts

The correct Answer is:
A
`T = (hrhogr)/(2costheta) = (6xx10^(-2)xx870xx9.8xx10^(-4))/(2 xx 0.9563) = 0.026` N/m
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