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Stress-Strain Graph

In the load-e...

Question

In the load-extension graph for a wire, the elastic limit lies between the points

A

Q and R

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B

P and Q

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C

P and R

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D

None of these

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Solution

The correct option is B P and Q
After Q, it won't regain its shape, as can be seen from the graph (or by inverting the axis to read stress-strain graph). Thus elastic limit lies between P and Q.

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