A stream line is
(A) Fixed in space in steady flow
(B) Always the path of particle
(C) Drawn normal to the velocity vector at every point
(D) A line connecting the mid points of flow cross-section
(A) Fixed in space in steady flow
(B) Always the path of particle
(C) Drawn normal to the velocity vector at every point
(D) A line connecting the mid points of flow cross-section