An error of 1% in measuring the head of water over the crest of a rectangular weir, produces an error in the discharge which is equal to

An error of 1% in measuring the head of water over the crest of a rect

1.	An error of 1% in measuring the head of water over the crest of a rectangular weir, produces an error in the discharge which is equal to
A.	1.25%
B.	1.5%
C.	1.75%
D.	2.25%
Answer» C. 1.75%