The stress-strain curves for brass,steel,and | vedclass

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(C) The slope of the stress-strain curve represents the Young's modulus $(Y)$ of the material,where $Y = 	an 	heta$.According to the figure,the angl

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Steel,brass,and rubber respectively

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(C) The slope of the stress-strain curve represents the Young's modulus $(Y)$ of the material,where $Y = 	an 	heta$.According to the figure,the angles with the strain axis satisfy the condition $	heta_A > 	heta_B > 	heta_C$.Since the tangent function is increasing in the first quadrant,we have $	an 	heta_A > 	an 	heta_B > 	an 	heta_C$,which implies $Y_A > Y_B > Y_C$.Comparing the Young's modulus values of the given materials,we know that steel is the most rigid (highest $Y$),followed by brass,and rubber is the least rigid (lowest $Y$).Therefore,the lines $A, B,$ and $C$ correspond to steel,brass,and rubber respectively.

Column-$I$	Column-$II$
$(a)$ Graph $A$	$(i)$ $A$ is ductile
$(b)$ Graph $B$	$(ii)$ $A$ is brittle
	$(iii)$ $B$ is ductile
	$(iv)$ $B$ is brittle

The stress-strain curves for brass,steel,and rubber are shown in the figure. The lines $A, B,$ and $C$ correspond to:

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In Column-$I$ there are two stress-strain graphs,and in Column-$II$ the nature of the materials is given. Match them appropriately:
Column-$I$ Column-$II$
$(a)$ Graph $A$ $(i)$ $A$ is ductile
$(b)$ Graph $B$ $(ii)$ $A$ is brittle
$(iii)$ $B$ is ductile
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