The strain-stress curves of three wires of different materials are shown in the figure. P, Q and R are the elastic limits of the wires. The figure shows that
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a
Elasticity of wire P is maximum
b
Elasticity of wire Q is maximum
c
Tensile strength of R is maximum
d
None of the above is true
answer is D.
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Detailed Solution
As stress is shown on x-axis and strain on y-axis So we can say that Y=cot θ=1tan θ=1 slope So elasticity of wire P is minimum and of wire R is maximum.