Two masses ${m_1}$ and ${m_2}$ are suspended together by a massless spring of constant k. When the masses are in equilibrium, ${m_1}$ is removed without disturbing the system. Then the angular frequency of oscillation of ${m_2}$ is
Two masses ${m_1}$ and ${m_2}$ are suspended together by a massless spring of constant k. When the masses are in equilibrium, ${m_1}$ is removed without disturbing the system. Then the angular frequency of oscillation of ${m_2}$ is
- A
$\sqrt {\frac{k}{{{m_1}}}} $
- B
$\sqrt {\frac{k}{{{m_2}}}} $
- C
$\sqrt {\frac{k}{{{m_1} + {m_2}}}} $
- D
$\sqrt {\frac{k}{{{m_1}{m_2}}}} $
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- [IIT 1999]
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