CBSE Class 11-Physics: MI: Shape of the Body and Axis of Rotation

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Shape of the body , Axis of rotation and Expression for Moment of Inertia

Shape of the body

Axis of rotation

Expression for Moment of Inertia

One dimensional rod of mass M and length L

1) Center of Rod and to length

2) One end and to length

Sphere of mass M and

Radius

1) Any diameter

2) Any tangent plane

Circular disc of Mass and radius R

1) Through center, to plane of Disk

2) any diameter

3) tangent in the plane of the disc

4) tangent to plane of disk

Circular ring of mass M and radius R

1) Through center, to plane of ring

2) any diameter

3) tangent in the plane of the ring

4) tangent to plane of ring

Cylinder of mass M, radius R and length L

1) own axis

2) through center to length

Rectangular lamina of Mass M, length L and breath B

1) Length of lamina and in its plane

2) breath of lamina and in its plane

3) Center of lamina and to its plane

Rectangular block of Mass M, Length L, Breadth B and

Height H

Through center of block and parallel to Length or breadth or height of the block