A cylindrical tank is filled with water ...

A cylindrical tank is filled with water to a level of 4 m. A hole is opened at a height of 60 cm from bottom. The ratio of the area of the hole to that at cross-sectinal area at cylinder is `0.2.` Then the velocity with which water is coming out is `(g = 10m//s^(2))`

`7.9 m//s`

`9.2 m//s`

`8.4m//s`

`8.9m//s`

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