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A uniform chain of length l is placed on...

A uniform chain of length `l` is placed on rough table with length `l//n` (where `n gt 1`) , hanging over the edge. If the chain just begins to slide off the table by itself from this position, the coefficient of friction between the chain and the table is

A

`(1)/(n)`

B

`(1)/(n-1)`

C

`(1)/(n+1)`

D

`(n-1)/(n+1)`

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The correct Answer is:
C
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