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The graph shown the extension of is wire...

The graph shown the extension of is wire of length 1 m suspended from the top of a roof at one end and with a load W connected to the other end. If the cross sectional area of the wire is `1 mm^(2)`, then the Young's modulus of the material of the wire.

A

`2xx10^(11) Nm^(-1)`

B

`2xx10^(10) Nm^(-2)`

C

`(1)/(2)xx10^(11) Nm^(-2)`

D

None of these

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