A) 2 : 3
B) 1 : 1
C) 3 : 2
D) 4 : 9
Correct Answer: C
Solution :
Thermal stress = \[Y\alpha \Delta \theta \]. If thermal stress and rise in temperature are equal then \[Y\propto \frac{1}{\alpha }\] Þ \[\frac{{{Y}_{1}}}{{{Y}_{2}}}=\frac{{{\alpha }_{2}}}{{{\alpha }_{1}}}=\frac{3}{2}\]You need to login to perform this action.
You will be redirected in
3 sec