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

Question

A circular disc is to be made by using iron and aluminium, so that it aquires momentum of inertia about its geometrical axis. It is possible with (A) iron and aluminium layers in alternate order (B) aluminium at interior and iron surrounding it (C) iron at interior and aluminium surrounding it (D) Either (a) or (c)

Tardigrade Admin · Accepted Answer

By doing so the distribution of mass can be made away from the axis of rotation.

Q. A circular disc is to be made by using iron and aluminium, so that it aquires momentum of inertia about its geometrical axis. It is possible with

iron and aluminium layers in alternate order

aluminium at interior and iron surrounding it

iron at interior and aluminium surrounding it

Either (a) or (c)

By doing so the distribution of mass can be made away from the axis of rotation.