Q.

In plotting stress versus strain curves for two materials P  and  Q, a student by mistake puts strain on the  y-axis and stress on the  x-axis shown in the figure.  Then the correct statement(s) is (are)

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a

P has more tensile strength than Q

b

P is more ductile than Q

c

P is more brittle than Q

d

The young’s modulus of P  is more than that of Q

answer is A.

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Detailed Solution

Slope= strain  stress =1Y⇒ slope ∝1Y⇒mP>mQ⇒YP
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