Physics · Fluid Mechanics
A triangular weir with a total notch angle θ is used to measure the discharge (Q) under a head of water H. The theoretical discharge (Qth) is computed by which of the following formulas?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Qth = 815 tan(θ) H5/2 √2g
- 2Qth = 815 tan(θ) √2gH
- 3Qth = 815 tan(θ2) H5/2 √2g✓
- 4Qth = 815 tan(θ2) √2gH52
Correct answer
Qth = 815 tan(θ2) H5/2 √2g
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