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Per NCERT §6.9, the dimensions and SI unit of moment of inertia are which?
A[M L] and kg m
B[M L²] and kg m²
C[M L² T⁻²] and joule
D[M T⁻²] and N/m
Answer & Solution
Correct answer: B. [M L²] and kg m²
NCERT §6.9: I = Σ m r² ⇒ [M L²]; SI unit kg m². Has no dependence on time.
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