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The adjacent graph shows the estension (...

The adjacent graph shows the estension `(Deltal)` of a wire of length 1m 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^-6m^2`, calculate the Young's modulus of the material of the wire.

A

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

B

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

C

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

D

(d) `2xx10^-13N//m`

Text Solution

Verified by Experts

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