The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

• A. 0.5 v₁²/2g
• B. v₁²/2g
• C. 0.375 v₂²/2g
• D. v₂²/2g

Answer: (C)