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Let the moment of inertia of a hollow cylinder of length 30 cm (inner radius 10 cm and outer radius 20 cm). about its axis be I. The radius of a thin cylinder of the same mass such that its moment of inertia about its axis is also I, is:

a.

12 cm

b.

18 cm

c.

16 cm

d.

14 cm


Question ID - 50633 | Toppr Answer

Let the moment of inertia of a hollow cylinder of length 30 cm (inner radius 10 cm and outer radius 20 cm). about its axis be I. The radius of a thin cylinder of the same mass such that its moment of inertia about its axis is also I, is:

a.

12 cm

b.

18 cm

c.

16 cm

d.

14 cm

1 Answer - 5876 Votes

3537

Answer Key : (c) -

16 cm



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