A circular disc is to be made by using iron and aluminium, so that it acquires maximum moment of inertia about its geometrical axis. It is possible withA. Iron and aluminium layers in alternate orderB. Aluminium at interior and iron surrounding itC. Iron at interior and aluminium surrounding itD. Either (`1`) or (`3`)

A circular disc is to be made by using iron and aluminium, so that it

1.	A circular disc is to be made by using iron and aluminium, so that it acquires maximum moment of inertia about its geometrical axis. It is possible withA. Iron and aluminium layers in alternate orderB. Aluminium at interior and iron surrounding itC. Iron at interior and aluminium surrounding itD. Either (`1`) or (`3`)
Answer» Density of iron `gt` density of aluminium, mass of iron `gt` mass of aluminium

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