Rotation 1 Question 16
19. A thin wire of length and uniform linear mass density is bent into a circular loop with centre at as shown. The moment of inertia of the loop about the axis is (2000)
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 19. (d)
Solution:
- Mass of the
. Let be the radius of the ring, then
or
Moment of inertia about an axis passing through
Therefore, moment of inertia about
Substituting values of