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Figure shows the strain stress curve for...


Figure shows the strain stress curve for a given material. The Young's modulus of the material is

A

`5xx10^9Nm^-2`

B

`5xx10^10Nm^-2`

C

`7.5xx10^9Nm^-2`

D

`7.5xx10^10Nm^-2`

Text Solution

Verified by Experts

The correct Answer is:
D
From the given graph for a stress of `150xx10^6Nm^-2` the strain is 0.002.
`therefore` Young's modulus `Y=(stress)/("strain")`
`Y=(150xx10^6)/(0.002)Nm^-2=7.5xx10^10Nm^-2`
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