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The stress strain graph for a metal wire...


The stress strain graph for a metal wire is as shown in the figure. In the graph, the region in which Hooke's law is obeyed, the ultimate strength and fracture are represented by

A

OA,C,D

B

OB,D,E

C

OA,D,E

D

OB,C,D

Text Solution

Verified by Experts

The correct Answer is:
C

In the region OA, the graph is linear showing that stress is proportional to the strain. Is proportional to the strain. Thus in this region Hooke's law is obeyed. The point D on the graph is known as ultimate tensile strength. The point E on the graph is known as fracture point.
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