Question
Question: In steel the young's modulus and the strain at the breaking point are 2 × 10<sup>11</sup> Nm<sup>–2<...
In steel the young's modulus and the strain at the breaking point are 2 × 1011 Nm–2 and 0.15 respectively. The stress at the break point for steel is-
A
1.33 × 1011 Nm–2
B
1.33 × 10–12 Nm–2
C
7.5 × 10–3Nm–2
D
3 × 1010Nm–2
Answer
3 × 1010Nm–2
Explanation
Solution
Strees = Y × Strain
= 2 × 1011 × 0.15 Nm–2 = 3 × 1010 Nm–2