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Discharge over a right-angled (90°) V-notch Given head H measured above the notch apex. Identify the exponent of H and the standard form of the discharge relation (up to proportionality).

Q: Discharge over a right-angled (90°) V-notch Given head H measured above the notch apex. Identify the exponent of H and the standard form of the discharge relation (up to proportionality).

Concept/Approach For a triangular (V) notch, the theoretical discharge is proportional to H5/2. For a right-angled notch (θ = 90°): Q = (8/15) Cd √(2g) H5/2. Final Answer Cd √(2g) × H5/2

Difficulty: Easy

Cd √(2g) × H
Cd √(2g) × H3/2
Cd √(2g) × H2
Cd √(2g) × H5/2

Correct Answer: Cd √(2g) × H5/2

Explanation:

Concept/Approach
For a triangular (V) notch, the theoretical discharge is proportional to H^5/2. For a right-angled notch (θ = 90°): Q = (8/15) C_d √(2g) H^5/2.

Final Answer
Cd √(2g) × H5/2

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