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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two thin circular discs of mass m and 4 m, having radii of a and 2 a, respectively, are rigidly fixed by a massless, rigid rod of length l = root 24 ​a 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 ω. The angular momentum of the entire assembly about the point ‘O’ is L → (see the figure). Which of the following statement(s) is(are) true?

Two thin circular discs of mass m and 4 m, having radii of a and 2 a, respectively, are rigidly fixed by a massless, rigid rod of length l = root 24 ​a 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 ω. The angular momentum of the entire assembly about the point ‘O’ is L → (see the figure). Which of the following statement(s) is(are) true?

A particle of mass m is moving along the side of a square of side 'a' are rigidly fixed by a massless having radii of a and 2 a respectively rigid rod of length l = root 24 ​a through their centres. This assembly is laid on a firm and flat surface Two thin circular discs of mass m and 4 m with a uniform speed v in the x-y plane as shown in the figure. Which of the following statements is false for the angular momentum L about the origin?