NEET 2021 Model Test Paper 5

A block of mass M is situated on a smooth horizontal frictionless table. A thread tied to the block passes through a hole in the table and carries a mass m at its other end. If the length of the thread above the table is l , what should be the value of m so that it may remain suspended at a constant height and the block M moves in a circular path with an angular velocity ω on the table ?