A diatomic molecule is formed by two atoms which may be treated as mass points m 1 and m 2 joined by a massless rod of length r . Then the moment of inertia of molecule about an axis passing through centre of mass and perpendicular to the rod is

Question

A diatomic molecule is formed by two atoms which may be treated as mass points m 1 and m 2 joined by a massless rod of length r . Then the moment of inertia of molecule about an axis passing through centre of mass and perpendicular to the rod is, Zero, m 1 + m 2 r 2, m 1 m 2 m 1 + m 2 r 2, m 1 + m 2 m 1 m 2 r 2

MARKS App · Accepted Answer

With respect to centre of mass, Effective mass = m 1 m 2 m 1 + m 2 ∴ I = m 1 m 2 m 1 + m 2 r 2

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