Where does the maximum stress occur in case of laminar flow of
incompressible fluid in a closed conduit of diameter 'd'?
(A) At the centre
(B) At d/4 from the wall
(C) At the wall
(D) At d/8 from the wall
incompressible fluid in a closed conduit of diameter 'd'?
(A) At the centre
(B) At d/4 from the wall
(C) At the wall
(D) At d/8 from the wall