A circular disc is to be made using iron and aluminium. To keep its moment of inertia…
Physics · JEE Advanced · NTA Exams — Rotational Motion
A circular disc is to be made using iron and aluminium. To keep its moment of inertia maximum about a geometrical axis, it should be so prepared that:
- aluminium at interior and iron surrounds it
- iron at interior and aluminium surrounds it
- aluminium and iron layers in alternate order
- sheet of iron is used at both external surface and aluminium sheet as inner material
Answer
(A) aluminium at interior and iron surrounds it
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