Two positively charged spheres of masses $m_1$ and $m_2$ are suspended from a common point at the ceiling by identical insulating massless strings of length $l$. Charges on the two spheres are $q_1$ and $q_2$, respectively. At equilibrium, both strings make the same angle $\theta$ with the vertical. Then
Two positively charged spheres of masses $m_1$ and $m_2$ are suspended from a common point at the ceiling by identical insulating massless strings of length $l$. Charges on the two spheres are $q_1$ and $q_2$, respectively. At equilibrium, both strings make the same angle $\theta$ with the vertical. Then
- [KVPY 2014]
- A
$q_1 m_1=q_2 m_2$
- B
$m_1=m_2$
- C
$m_1=m_2 \sin \theta$
- D
$q_2 m_1=q_1 m_2$
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- [JEE MAIN 2013]
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