Question:medium
A rod of length \(L\) is composed of two equal parts: half wood (mass \(m_w\)) and half brass (mass \(m_b\)). The moment of inertia about an axis through its centre and perpendicular to the rod is:
A rod of length \(L\) is composed of two equal parts: half wood (mass \(m_w\)) and half brass (mass \(m_b\)). The moment of inertia about an axis through its centre and perpendicular to the rod is:
Show Hint
If rod is symmetric about centre, use \( \frac{1}{12}ML^2 \) directly.
Updated On: Apr 16, 2026
- \( \frac{(m_w + m_b)L^2}{6} \)
- \( \frac{(m_w + m_b)L^2}{2} \)
- \( \frac{(m_w + m_b)L^2}{12} \)
- \( \frac{(m_w + m_b)L^2}{3} \)
Show Solution
The Correct Option is C
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