railway RRB JE (CBT I + CBT II) Mock Test 2024 Fluid Mechanics Open Channel Flow Weirs and Notches

The head over a 90° V-notch increases from 0.15 m to 0.3 m. what will be the ratio of new discharge to original discharge? 

1
\(\frac{8}{15}\)
2
2
3
\(\sqrt2\)
4
4\(\sqrt 2\)
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