if rainfall on a certain day was 5cm, how many litres of water fall on 1 hectare of field on that day
Area of land = 1 Hectare = 108 cm2
Height of rainfall = 5 cm
Amount of rainfall = 5 × 108 cm3
As 1 m3 = 106 cm3
∴ 5 × 108 cm3 =
1 m3 = 1000 l
∴ 500 m3 = 1000 × 500 m3 = 5,00,000 l
Thus, amount of rainfall is 5,00,000 l.