AIIMS2019PhysicsRotational Motion
A thin wire of mass M and length L is bent to form a circular ring. The moment of inertia of this ring about its axis is
Options
- A1 4 M L^2
- B1 ^2 M L^2
- C1 4 ^2 M L^2
- D1 12 M L^2
Correct answer
C. 1 4 ^2 M L^2
Step-by-step solution
A wire of length L is bent to form a circular ring of radius R , 2 R=L or R= L 2 Moment of inertia of the circular ring about its axis is I=M R^2= 1 4 ^2 M L^2