The interanal radius of one limb of a capillary `U-`tube is `r_(1) = 1 mm` and the internal radius of the second limb is `r_(2) = 2 mm`, the tube is filled with same mercury, and one of the limbs is connected to a vecuum pump. The surface tension & density of mercury are `480 dyn//cm` & `13.6 gm//cm^(3)` respectively (assume contact angle to be `theta = 180^(@)`)`(g = 9.8 m//s^(2)`)
Which limb of the should be connected to the pump ?

The interanal radius of one limb of a capillary U- tube is r_(1) = 1 mm and the internal radius of the second limb is r_(2) = 2 mm , the tube is filled with same mercury, and one of the limbs is connected to a vecuum pump. The surface tension & density of mercury are 480 "dyn"//"cm" & 13.6 gm//cm^(3) respectively (assume contact angle to be theta = 180^(@) ) (g = 9.8 m//s^(2) ) What will be the difference in air pressure when the mercury levels in both limbs are at the same height ?

The internal radius of a capillary tube is 0.025 mm. Determine the rise in height of water in that tube. Surface tension of water = 70 dyn. cm^-1 .

Find the difference in levels of mercury in the limbs of a U-tube if the diameter fo bore of one limb is 1mm and of the other 4mm. The surface tension of mercury is 544 xx 10^(-3) "Nm"^(-1) its density is 13.6 xx 10^(3) "kg" m^(-3) and angle of contact is 130^(@).

Water rises to a height of 10 cm in capillary tube and mercury falls to a depth of 3.112 cm in the same capillary tube. If the density of mercury is 13.6 and the angle of contact for mercury is 135^(@) , the ratio of surface tension of water and mercury is

Water rises to a height of 10 cm in capillary tube and mercury falls to a depth of 3.112 cm in the same capillary tube. If the density of mercury is 13.6 and the angle of contact for mercury is 135^(@) , the ratio of surface tension of water and mercury is

Water rises to a height of 10cm in a capillary tube and mercury falls to a depth of 3.42 cm in the same capillary tube. If the density of mercury is 13.6gm/cc and the angle of contact is 135^@ . Find ratio of surface tensions of water and mercury