MHT CET Physics question
A circular disc 'X' of radius 'R' made from iron plate of thickness 't' has moment of inertia '' about an axis passing through the centre of disc and perpendicular to its plane. Another disc 'Y' of radius '3R' made from an iron plate of thickness has moment of inertia '' about the same axis as that of disc X. The relation between and is [MHT-CET 2022, MHT-CET 2022]
Answer: (D)
Solution
with , so ;
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