A particle is moving in a vertical circle. The tensions in the string when passing through two p...

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A particle is moving in a vertical circle. The tensions in the string when passing through two positions at angle \( 30^{\circ} \) and \( 60^{\circ} \) from vertical (lowest position) are \( T_{1} \) and \( T_{2} \) respectively, then
(a) \( T_{1}=T_{2} \)
(b) \( T_{1}T_{2} \)
(c) \( T_{1}T_{2} \)
(d) Tension in the string always remains the same
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