The loss of head due to the sudden expansion of a pipe is given by

• A. \({h_{l}} = \frac{{{{({V_{^1}^2} - {V_{^2}^2})}}}}{{2g}} \)
• B. \({h_l} = \frac{{0.5{V^2}}}{{2g}}\)
• C. \({h_{L}} = \frac{{{{({V_{^1}} - {V_{^2}})}^2}}}{{2g}}\)
• D. None of the above