If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be

Dimensions of resistance in an electrical circuit, in terms of dimension of mass M, of length L, of time T and of current I, would be

The velocity v of a particle at time t is given by v = at + $${b \over {t + c}}$$, where a, b and c are constants. The dimensions of a, b and c are

The ratio of the dimensions of Planck's constant and that of moment of inertia is the dimensions of