Question
A vertical U tube contains a liquid .The total lenght of the liquid column inside the tube is l .When the liquid is in equilibrium ,the liquid surface in one of the arms of the U tube is pushed down slightly and released .The entire liquid column will undergo a periodic motion A) The motion is not SHM B) The motion is shm C)If it undergoes shm ,the time period is 2π\sqrt{g/l} D)f it undergos SHM ,the time period is 2π\sqrt{l/2g} More then one correct options.