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A L shaped rod of mass M is free to rota...

A L shaped rod of mass M is free to rotate in a vertical plane about axis A A as shown in figure. Maximum angular acceleration of rod is

A

`(3g)/(sqrt10)`

B

`(9g)/(101)`

C

`(9g)/(51)`

D

`(6g)/(5sqrt(21))`

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The correct Answer is:
A
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