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In the system shown in the figure, which...

In the system shown in the figure, which the following is correct? (Pulleys and strings are of negligible mass)

A

The system can never be in equilibrium

B

The system remains in equilibrium at `theta=45^(@)`

C

If the masses of A and C are changed then the equilibrium angle (if any) changes

D

If all the masses are doubled, the equilibrium angle (if any) remains same.

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The correct Answer is:
B, C, D
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