Question

The moment of inertia of a disc of mass \(m\) and radius \(R\) about an axis, which is tangential to the circumference of the disc and parallel to its diameter is

• A. \(\frac{3}{2} mR^2\)
• B. \(\frac{2}{3} mR^2\)
• C. \(\frac{5}{4} mR^2\)
• D. \(\frac{4}{5} mR^2\)

Hint:

For disc: \(I_{\text{about diameter}} = \frac{1}{4}mR^2\), \(I_{\text{about perpendicular axis through centre}} = \frac{1}{2}mR^2\).

Answer 1

The Correct Option is C