6. The angle of divergence for the divergent cone of a venturimeter which will give most efficient conversion of kinetic energy is about
A. 10
B. 12
C. 6
D. 4
6. The angle of divergence for the divergent cone of a venturimeter which will give most efficient conversion of kinetic energy is about
A. 10
B. 12
C. 6
D. 4