A tank of height 5 m is full of water. There is a hole of cross sectional area $1\: cm^2$ in its bottom. The value of water that will come out from this hole per second is ($ g = 10 m/s^2$)

Question

$\begin {array} {1 1} (1)\;10^{-3}m^3/s & \quad (2)\;10^{-4}m^3/s \\ (3)\;10\: m^3/s & \quad (4)\;10^{-2}m^3/s \end {array}$