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Two wires A and B are of the same materi...

Two wires A and B are of the same material. Their lengths are in the ratio 1 : 2 and the diameter are in the ratio 2 : 1. If they are pulled by the same force, then increase in length will be in the ratio

A

`2:1`

B

`1:4`

C

`1:8`

D

`8:1`

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