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A ring of mass 5 kg sliding on a frictio...

A ring of mass 5 kg sliding on a frictionless vertical rod connected by a clock B of mass 10 kg by the help of a massless string.
Then, at the equilibrium of the system, the value of `theta` is

A

`30^@`

B

`60^@`

C

`90^@`

D

`0^@`

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The correct Answer is:
B
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