We have two (narrow) capillary tubes T and T . Their lengths are l and l and radii of cross-section are r and r respectively. The rate of flow of water under a pressure difference P through tube T is `8 cm 3// sec`. If `l = 2l` and `r = r` what will be the rate of flow when the two tubes are connected in series and pressure difference across the combinatin is same as before `(= P)`

We have two (narrow) capillary tubes T_1 and T_2 . Their lengths are l_1 and l_2 and radii of cross-section are r_1 and r_2 respectively. The rate of flow of water under a pressure difference P through tube T is 8 cm 3// sec . If l_1 = 2l_2 and r_1 = r_2 what will be the rate of flow when the two tubes are connected in series and pressure difference across the combinatin is same as before (= P)

The rate of flow of a liquid through a capillary tube of radius r is under a pressure difference of P. Calculate the rate of flow when the diameter is reduced to half and the pressure difference is made 4 P?

Two capillary tubes of same length each of 50 cm but of different radii 4 mm and 2mm are connected in series. When water flows, the pressure, difference between the ends of the first tube is