MOI about center perpendicular to plane = MR²/2. Using parallel axis theorem: I = MR²/2 + MR² = 3MR²/2
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JEE Main 2020 — Physics Mechanics
medium
mcq
2020
Official previous-year question
Verified 30 May 2026.
Question
The moment of inertia of a uniform circular disc of radius R and mass M about an axis touching the disc at its diameter and normal to the disc is:
Options
- AMR²/2
- BMR²
- C3MR²/2
- D2MR²
Solution
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