Two thin circular discs of mass m and 4m, having radii of a and 2a, respectively,
Channel: Doubtnut
Date: 2020-07-05

Two thin circular discs of mass m and 4m, having radii of a and 2a, respectively, are rigidly fixed by a massless, rigid rod of length `l= sqrt(24a)` through their centres. This assembly is laid on a firm and flat surface, and set rolling without slipping on the surface so that the angular speed about the axis of the rod is `omega.` The angular momemtum of the entire assembly about the point 'O' is `vacL` (see the figure). Which of the follwing statement (s) is (are) true?