SATHEE: Properties of Matter 1 Question 16

Properties of Matter 1 Question 16

16. 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 as shown in the figure. Then the correct statements is/are

(2015 Adv.)

(a) $P$ has more tensile strength than $Q$

(b) $P$ is more ductile than $Q$

(d) The Young’s modulus of $P$ is more than that of $Q$

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Answer:

Correct Answer: 16. (a, b)

Solution:

$Y = \frac{stress}{strain}$

or $Y \propto \frac{1}{strain}$

(for same stress say $σ$ )

$(strain)_{Q} < (strain)_{P}$

$\Rightarrow Y_{Q} > Y_{P}$

So, $P$ is more ductile than $Q$ . Further, from the given figure we can also see that breaking stress of $P$ is more than $Q$ . So, it has more tensile strength.

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Properties of Matter 1 Question 16

16. 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 as shown in the figure. Then the correct statements is/are

Answer:

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16. 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 as shown in the figure. Then the correct statements is/are