When glass capillary tube of radius 0.4 mm is dipped into mercury, the level inside the capillary stands 1.24 cm lower than that outside. Calculate the surface tension of mercury. (Angle of contact of mercury with glass `= 135^@`, `g = 9.8 m//s^2`, density of mercury `= 13.6 xx 10^3 kg//m^3`)

A capillary tube of radius 1 mm is immersed in a beaker of mercury. The mercury level inside the tube is found to be 0.536 cm below the level in the reservoir. Determine the angle of contact between the mercury and glass.

The tube of a mercury barometer is 1 cm in diameter. What correction due to capillarity with effect of meniscus is to be applied to barometer reading if surface tension of mercury is 435.5 dyne/cm and angle of contact of mercury with glass is 140^@ ? (density of mercury = 13600 kg//m^3 )

A capillary tube of radius 0.5 mm is dipped vertically in a liquid of surface tension 0.04 N/m and relative density 0.8 g/cc . Calcukate the height of capillary rise , if the angle of contact is 10^@ .

A capillary tube of radius 5 xx 10^-4 m is immersed in a beaker filled with mercury. The mercury level inside the tube is found to be 8 xx 10^-3 m below the level of reservoir. Determine the angle of contact between mercury and glass. Surface tension of mercury is 0.465 N//m and its density is 13.6 xx 10^3 kg//m^3 . (g= 9.8 m//s^2 )

A capillary tube of diameter 0.6 mm dipped vertically into water. It rises to height of 6 cm in capillary tube, find the surface tension of water. (Given: density of water = 1000 kg//m^3, g = 9.8 m//s^2 ).

Calculate the rise of water inside a clean glass capillary tube of radius 0.1 mm when immersed in water of surface tension 7 xx 10^-2N//m . The angle of contact between water and glass is zero, density of water = 1000 kg//m^3, g = 9.8 m//s^2

If a mercury drop of radius 1 cm is sprayed into 10^6 droplets of equal size, then the energy absorbed in joules will be. (Surface tension of mercury is 460xx10^-3 N//m)

Calculate the density of paraffin oil, if glass capillary of diameter 0.25 mm dipped in paraffin oil of the surface tension 0.0245 N//m rises a height of 4 cm. (angle of contact of paraffin oil with glass is 28^@ and g=9.8m//s^2 )