A thin circular ring and a solid disc

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

A thin circular ring and a solid disc, each of mass

2\,\text{kg}

and radius

0.30\,\text{m}

, rotate about the same fixed axis through their centres perpendicular to their planes. The ratio of the moment of inertia of the ring to that of the disc is (a)

1

(b)

\sqrt{2}

(c)

2

(d)

\dfrac{1}{2}

Related theory

Moment of Inertia
Rotational dynamics

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