# Power required to raise $300 liters$ of water per minute through a height of 6m using a pipe of diameter 2.4 cm is $(g=10 m/s^2)$
$\begin {array} {1 1} (a)\;600\;walt \\ (b)\;400\;walt \\ (c)\;1000\;walt \\ (d)\;2000\;walt \end {array}$