The head over a rectangular sharp crested notch at the end of a channel is 0.75 m. If an error of 1.5 mm is possible in the measurement of the head, then the percentage error in computing the discharge will be:

The head over a rectangular sharp crested notch at the end of a channe

1.	The head over a rectangular sharp crested notch at the end of a channel is 0.75 m. If an error of 1.5 mm is possible in the measurement of the head, then the percentage error in computing the discharge will be:
A.	0.5
B.	0.3
C.	1.0
D.	1.5
Answer» C. 1.0