**Question:**

**The pressure that has to be applied to the ends of a steel wire of length $10 \mathrm{~cm}$ to keep its length constant when its temperature is raised by $100^{\circ} \mathrm{C}$ is:**

**(For steel Young’s modulus is $2 \times 10^{11} \mathrm{Nm}^{-2}$ and coefficient of thermal expansion is $1.1 \times 10^{-5} \mathrm{~K}^{-1}$ ) **

$2.2 \times 10^{8} \mathrm{~Pa}$

$2.2 \times 10^{9} \mathrm{~Pa}$

$2.2 \times 10^{7} \mathrm{~Pa}$

$2.2 \times 10^{6} \mathrm{~Pa}$

Question of from chapter.

JEE Main Previous Year 2014

Correct Option: 1

**Solution:**