In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the
diameter of the orifice from the outlet of orifice.
(A) Equal to
(B) One-fourth
(C) One-third
(D) One-half
diameter of the orifice from the outlet of orifice.
(A) Equal to
(B) One-fourth
(C) One-third
(D) One-half