The results of which are more accurate; rectangular notch or triangular weir.

(a) Rectangular notch

(b) Triangular weir

(c) Both are equally accurate

(d) Rectangular weir

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Question is from Discharge over a Rectangular, Triangular, Trapezoidal & Stepped Notch in chapter Orifices, Mouthpieces, Notches and Weirs of Fluid Mechanics