An air bubble of diameter 2 cm is allowed to rise through a long cylindrical column of viscous liquid and travels at the rate of 0.21 cm s^(-1) . If the density of the liquid is 1.47 g cm^(-3).find the coefficient of viscosity. Density of air is neglected.

An air bubble of diameter 2 cm is allowed to rise through a long cylin

1.	An air bubble of diameter 2 cm is allowed to rise through a long cylindrical column of viscous liquid and travels at the rate of 0.21 cm s^(-1) . If the density of the liquid is 1.47 g cm^(-3).find the coefficient of viscosity. Density of air is neglected.
Answer» SOLUTION :` eta = 2a^(2)( RHO - SIGMA ) g//9v= 2XX(10 ^(-2))^(2) XX (0 - 1.47 xx 10 ^(3)) xx 9.8// 9xx( - 0.21 xx 10 ^(2))= 152. 44 Ns m^(-2)`