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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/mB. `2.6 ` N/mC. `0.26` N/mD. `2.6` dyne/cm |
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Answer» Correct Answer - A `T = (hrhogr)/(2costheta) = (6xx10^(-2)xx870xx9.8xx10^(-4))/(2 xx 0.9563) = 0.026` N/m |
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