In a 90° triangular notch, in the error in the estimated discharge for a given head due to an error of 1% in cutting the vertex angle is

In a 90° triangular notch, in the error in the estimated discharge f

1.	In a 90° triangular notch, in the error in the estimated discharge for a given head due to an error of 1% in cutting the vertex angle is
A.	zero
B.	1%
C.	\( {\pi \over 2}\)%
D.	π %
Answer» D. π %

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In a 90° triangular notch, in the error in the estimated discharge for a given head due to an error of 1% in cutting the vertex angle is

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