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A circular disc is to be made by using i...

A circular disc is to be made by using iron and aluminium, so that it acquires maximum moment of inertia about geometrical axis. It is possible with

A

aluminium at interior and iron surrounding it.

B

iron at interior and aluminium surrounding it.

C

using iron and aluminium layers in alternate order.

D

sheet of iron is used at both external surface and aluminium sheet as internal layers.

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MODERN PUBLICATION-Moment of Inertia-Example
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