Q. The diagram shows the change $x$ in the length of a thin uniform wire caused by the application of stress $F$ at two different temperatures $T_{1}$ and $T_{2}$. The variation shown suggest that
A) $T_{1} > T_{2}$
B) $T_{1} < T_{2}$
C) $T_{1} = T_{2}$
D) None of these
Explanation
(a) Elasticity of wire decreases at high temperature $i.e.$ at higher temperature slope of graph will be less
So we can say that $T_{1} > T_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.