The stage of river carrying a discharge of Q m7sec at a point is 10 m and slope of water surface is (1/4000). The discharge of a flood at the same point and same stage of 10 m with a water surface slope of(l/1000) will be________________?
(A) V2 Q m3/sec
(B) 0.5 Q mVsec
(C) 2 Q m3/sec
(D) 4 Q m3/sec

