Two rods of equal mass \( m \) and length \( l \) lie along the \( ...

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Two rods of equal mass \( m \) and length \( l \) lie along the \( x \)-axis and \( y \)-axis with their centers origin. What is the moment of inertia of both about the line \( x=y \) :
(1) \( \frac{m l^{2}}{3} \)
(2) \( \frac{m l^{2}}{4} \)
(3) \( \frac{m l^{2}}{12} \)
(4) \( \frac{m l^{2}}{6} \)
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