The head loss in a sudden expansion from 6 cm diameter pipe to 12 cm diameterpipein termsof velocity v1 in the smaller diameterpipe is
(a) $$\frac{3}{16}.\frac{v_1^2}{2g}$$
(b) $$\frac{5}{16}.\frac{v_1^2}{2g}$$
(c) $$\frac{7}{16}.\frac{v_1^2}{2g}$$
(d) $$\frac{9}{16}.\frac{v_1^2}{2g}$$

A

(a)

B

(b)

C

(c)

D

(d)