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AP EAMCET2008PhysicsRotational Motion

The moment of inertia of a thin circular disc about an axis passing through its centre and perpendicular to its plane is I . Then, the moment of inertia of the disc about an axis parallel to its diameter and touching the edge of the rim is

Options

  1. AI
  2. B2 I
  3. C3 2 I
  4. D5 2 I

Correct answer

D. 5 2 I

Step-by-step solution

Moment of inertia of a circular disc about an axis passing through centre of gravity and perpendicular to its plane I= 1 2 M R^2 From Eq. (i) M R^2=2 I Then, moment of inertia of disc about tangent aligned in a plane = 5 4 & M R^2 & = 5 4 (2 I) & = 5 2 I aligned

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