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The lengths and radii of two wires of sa...

The lengths and radii of two wires of same material are respectively L, 2L, and 2R, R. Equal weights are applied on then. If the elongations produced in them are `l_(1)` and `l_(2)` respectively then their ratio will be

A

`2:1`

B

`4:1`

C

`8:1`

D

`1:8`

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