Question

The area of cross-section of a wire is 10^–5m² when its length is increased by 0.1% a tension of 1000N is produced. The Young's modulus of the wire will be ---- 

 1) 10¹² Nm^{– 2} 

2) 10¹¹ Nm^{– 2} 

3) 10⁹ Nm^–2 

4) 10¹⁰ Nm^–2 

Answer 1

Correct option (2) 10¹¹ Nm^–2 

Explanation: