Question

Which one of the following represents the correct dimensions of the coefficient of viscosity?
A. (a) `ML^(-1)T^(-1)`
B. (b) `MLT^(-1)`
C. ( c ) `ML^(-1)T^(-2)`
D. (d) `ML^(-2)T^(-2)`

Answer 1

Correct Answer - A
(a) From stokes law `F = 6pi etarv rArr eta = (F)/(6pirv)`
:. `eta = (MLT^(-2))/([L][LT^(-1)])` rArr eta = [ML^(-1)T^(-1)]`