If v1 and v2 are the velocities of flow before and after sudden enlargement in a pipe, the head loss given by Carnot and Borda equation, is

If v1 and v2 are the velocities of flow before and after sudden enlarg

1.	If v1 and v2 are the velocities of flow before and after sudden enlargement in a pipe, the head loss given by Carnot and Borda equation, is
A.	(v2² - v1²)/2g
B.	(v1 - v2)²/2g
C.	(v2 - v1)²/2g
D.	(v1 + v2)²/2g
Answer» C. (v2 - v1)²/2g