Consider the moment of inertia I of the rigid homogeneous disc of mass M as shown in the figure about an axis passing through its centre (different shadings only differentiate the two parts of the disc each with equal mass `M//2`). Which one of the following statements concerning I is correct?

Options

A. The inner and outer parts of the disc, each with mass `M//2`, contribute equal amounts to /.
B. The inner part of the disc contributes less to// than outer part.
C. The inner part of the disc contributes less to//than the outer part.
D. The inner part of the disc may contribute more or less to//depending on the actul numerical value to the mass M of the disc.

Answer

C