21 verified questions · ~23 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
The moment of inertia of a circular ring of mass M and diameter r about a tangential axis lying in the plane of the ring is:
If μ₀ and ε₀ are the permeability and permittivity of free space, respectively, then the dimension of (1/(μ₀ε₀)) is:
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