The moment of inertia of a hollow circular section whose external diameter is 8 cm and interial diameter is 6 cm about the axis passing through its centre is

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Q. The moment of inertia of a hollow circular section whose external diameter is 8 cm and interial diameter is 6 cm about the axis passing through its centre is

(A) 66.8 cm4
(B) 3 kg-m
(C) 12 kg-m
(D) 18 kg-m

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✅ Correct Answer: (A) 66.8 cm4

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