The stress versus strain graphs for wires of | vedclass

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Question

$\frac{{{Y_A}}}{{{Y_B}}} = \frac{{	an \,{	heta _A}}}{{	an \,{	heta _B}}} = \frac{{	an \,{{30}^o}}}{{	an \,{{60}^o}}} = \frac{{1/\sqrt 3 }}{{\sqr

Vedclass · Accepted Answer

$Y_B = 3Y_A$

Vedclass · Answer

$\frac{{{Y_A}}}{{{Y_B}}} = \frac{{	an \,{	heta _A}}}{{	an \,{	heta _B}}} = \frac{{	an \,{{30}^o}}}{{	an \,{{60}^o}}} = \frac{{1/\sqrt 3 }}{{\sqrt 3 }} = \frac{1}{3} \Rightarrow {Y_B} = 3{Y_A}$

The stress versus strain graphs for wires of two materials $A$ and $B$ are as shown in the figure. If $Y_A$ and $Y_B$ are the Young's modulus of the materials, then

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