Q22 of 70 Page 19

Water flows out through a circular pipe whose internal diameter is 2 cm. at the rate of 6 metres per second into a cylindrical tank. The radius of whose base is 60 cm. Find the rise in the level of water in 30 minutes?


Given,


Internal diameter of circular pipe = 2 cm


So, radius of pipe =


Rate of flow of water through pipe = 6 m/s


Radius of base of cylindrical tank = 60 cm


So, volume of water flows through pipe in 1 second = πr2h =


Volume of flows in 30 minute (30×60) second =


Let rise of water level in cylindrical tank = h m


So, volume of water collected in tank in 30 minute =


=


= h =


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