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The stress - strain graphs for materials...

The stress - strain graphs for materials A and B are shown in Fig . 9.12.

The graphs are frawn to the same scale.
(a) Which of the materials has the greater Young's modulus ?
(b) Which of the two is the stronger material ?

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The correct Answer is:
(a) Material A
(b) Strength of a material is determined by amount of stress required to cause fracture : material A is stronger than material B.
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