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The adjacent graph shows the extension(D...

The adjacent graph shows the extension`(Deltal)` of a 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 `10^(-6) m^2`, calculate from the graph the Young's modulus of the material of the wire.
.

A

`2xx10^(11)N//m`

B

`2xx10^(11)N//m`

C

`3xx10^(-12)N//m`

D

`2xx10^(-3)N//m`

Text Solution

Verified by Experts

The correct Answer is:
A
`Y=F/A/(/_\l)/l=(20xx1)/(10^(-6)xx10^(-4))=2xx10^(11)N//m^(2)`
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