Turpentine oil is flowing through a tube of length 1 and radius r. The pressure difference between the two ends of the tube is p. The viscosity of oil is given by `eta = (p(r^2 - x^2))/(4vl)` where, v is the velocity of oil at distance x from the axis of the tube. The dimesions of `eta ` are

Options

A. `[ML^(-1) T^(-1)]`
B. `[MLT^(-1)]`
C. `[ML^(2)T^(-2)]`
D. `[M^(0)L^(0)T^(0)]`

Answer

A