A liquid flows through two capillary tube under the same pressure head. The lengths of the tube are in the ratio 2:1 and the ratio of their diameters is 2:3. Compare the rates of flow of liquid through the tubes ?

A liquid flows through two capillary tube under the same pressure head

1.	A liquid flows through two capillary tube under the same pressure head. The lengths of the tube are in the ratio 2:1 and the ratio of their diameters is 2:3. Compare the rates of flow of liquid through the tubes ?
Answer» Solution :` Q //Q_2 = ( r_1//r_2) ^(4) XX (l_2//l_1)= (2//3)^(4)(1//2)= 8 : 81 `