JEE Main 10 Jan 2019 Shift 2 Solved Paper

A cylindrical plastic bottle of negligible mass is filled with 310 ml of water and left floating in a pond with still water. If pressed downward slightly and released, it starts performing simple harmonic motion at angular frequency ω. If the radius ofthe bottle is 2.5 cm then ω close to : (density of water = 103 kg / m3)