A capillary tube of the radius 0.5 mm is immersed in a beaker of mercury . The level inside the tube is 0.8 cm below the level in beaker and angle of contact is 120^@. What is the surface tension of mercury , if the mass density of mercury is rho= 13.6 xx 10^3 kg m^3and acceleration due togravity is g = 10 m s^(-2) ?

A capillary tube of the radius 0.5 mm is immersed in a beaker of mercu

1.	A capillary tube of the radius 0.5 mm is immersed in a beaker of mercury . The level inside the tube is 0.8 cm below the level in beaker and angle of contact is 120^@. What is the surface tension of mercury , if the mass density of mercury is rho= 13.6 xx 10^3 kg m^3and acceleration due togravity is g = 10 m s^(-2) ?
Answer» `0.225 "N m"^(-1)` `0.544 "N m"^(-1)` `0.285 "N m"^(-1)` `0.375 "N m"^(-1)` ANSWER :B

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