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The rainfall of magnitudes 4.1 cm and 3.3 cm occurring on two consecutive 4 hours duration on a catchment of area 25 km2 produced the direct runoff hydrograph having area 1.75×106 m3. Then the value of ϕ−index is_____cm/hr. |
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Answer» The rainfall of magnitudes 4.1 cm and 3.3 cm occurring on two consecutive 4 hours duration on a catchment of area 25 km2 produced the direct runoff hydrograph having area 1.75×106 m3. Then the value of ϕ−index is_____cm/hr. |
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