There are two concentric cylinders of radii `R_(1)` and `R_(2)` as shown. The narrow space between t
Channel: Doubtnut
Date: 2020-01-26

There are two concentric cylinders of radii `R_(1)` and `R_(2)` as shown. The narrow space between the two cylinders is filled with liquid of viscosity `mu`. The inner cylinder is held stationary by means of a torsional spring of stiffness G. the outer cylinder is rotated with constant angular speed `omega`. The torque acting on the inner cylinder due to shearing action of thhe liquid: