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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^(9) N m^(-2)`

B

`5xx 10^(10)Nm^(-2)`

C

`7.5 xx 10^(9)Nm^(-2)`

D

`7.5 xx 10^(10) Nm^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
D
From the given graph for a stree of `150xx10^(6) N m^(-2)` the srain is 0.002.
`therefore "Young's modulus Y" = ("Stress")/("Strain")`
`Y = (150xx10^(6))/(0.002) N m^(-2) = 7.5 xx 10^(10)N m^(-2)`
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