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Concepts Of Physics MCQ Edition [Volume 1]PhysicsIntroduction to Physics

Determine the dimensions of moment of inertia I . Some of the equations involving related quantities are = ₂ - ₁ t₂ - t₁ , = ₂ - ₁ t₂ - t₁ , = F r and I = mr^2 . The symbols have standard meanings.

Options

  1. AML
  2. BML^2
  3. CML^2 T⁻¹
  4. DML^2 T⁻²

Correct answer

B. ML^2

Step-by-step solution

From the given equation, I = mr^2 . The dimensional formula for mass m is [M] . The dimensional formula for distance r is [L] . Substituting these dimensions, the dimensional formula for moment of inertia I is [M][L]^2 = [ML^2] .

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