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In steel, the Young's modulus and the st...

In steel, the Young's modulus and the strain at the breaking point are `2 xx 10^(11) Nm^(-2)` and 0.15 respectively. The stress at the breaking point for steel is therefore……………. .

A

`2 xx 10^(8) Nm^(-2)`

B

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

C

`3 xx 10^(12) Nm^(-2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Breaking stress = Breaking strain `xx` Young.s modulus
`= 0.15 xx 2 xx 10^(11) = 3 xx 10^(10) Nm^(-2)`
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