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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. Thus, in this region Hooke's law is obeyed.

The point D on the graph is known as ultimate tensile strenght.
The point E on the graph is known as fracture point.
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