A) \[{{\text{Y}}_{\text{B}}}\text{=}\,\text{2}{{\text{Y}}_{\text{A}}}\]
B) \[{{\text{Y}}_{\text{A}}}\text{=}{{\text{Y}}_{\text{B}}}\]
C) \[{{\text{Y}}_{\text{B}}}\text{=3}{{\text{Y}}_{\text{A}}}\]
D) \[{{\text{Y}}_{\text{A}}}\text{=3}{{\text{Y}}_{\text{B}}}\]
Correct Answer: D
Solution :
\[\frac{\text{Stress}}{\text{Strain}}\text{=Y=}\] slope of graph \[\therefore \]\[\frac{{{\text{Y}}_{\text{A}}}}{{{\text{Y}}_{\text{B}}}}\text{=}\frac{\tan {{60}^{o}}}{\tan {{30}^{o}}}=3\] \[\therefore \]\[{{\text{Y}}_{\text{A}}}\text{=3}{{\text{Y}}_{\text{B}}}\]
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