1.

A capillary due sealed at the top has an internal radius of r = 0.05 cm. The tube is placed vertically in water, with its open end dipped in water. Find greatest interger corresponding to the length (in water) of such a tube be for the water in it to rise in these conditions to a heighth = 1 cm ? The pressure The pressure of the air is P_(0) = 1 atm. = 7 cm of Hg , density of Hg = 13.6 //cm^(3), g = 9.8 m//sec^(2) The surface tension of water is sigma = 70 "dyne"//"cm". (assume temperature of air in the tube is constant)

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SOLUTION :N//A


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