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A uniform chain of mass m and length `l` is lying on a table with `l/4` of its length hanging freely from the edge of the table. The amount of work done in dragging the chain on the table completely is
A. |
`(mgl)/4` |
B. |
`(mgl)/8` |
C. |
`(mgl)/32` |
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D. |
`(mgl)/16` |