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If pulleys shown in the diagram are smoo...

If pulleys shown in the diagram are smooth and massless and `a_(1)` and `a_(2)` are acceleration of blocks of mass 4 kg and 8 kg respectively, then -

A

`a_(1)=a_(2)`

B

`a_(1)=2a_(2)`

C

`2a_(1)=a_(2)`

D

`a_(1)=4a_(2)`

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