A Cipolletti weir has the crest length of $1.2 \mathrm{~m}$ and a crest water level of $0.5 \mathrm{~m}$. The average approach velocity of water in $\mathrm{m} \mathrm{s}^{-1}$ on the crest is

(A) 0.49

(B) 1.18

(C) 1.19

(D) 1.32

A Cipolletti weir has the crest length of $1.2 \mathrm{~m}$ and a crest water level of $0.5 \mathrm{~m}$. The average approach velocity of water in $\mathrm{m} \mathrm{s}^{-1}$ on the crest is

(A) 0.49

(B) 1.18

(C) 1.19

(D) 1.32

127