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Figure shows the stress-strain graphs fo...

Figure shows the stress-strain graphs for materials .`A` and `B`. From the graph it follows that

A

material A has a higher Young’s modulus

B

material B is more ductile

C

material A can withstand greater stress

D

material B can withstand greater stress

Text Solution

Verified by Experts

The correct Answer is:
AC
The slope of the linear portion of the curve gives the Young’s modulus of the material. The slope of the linear portion OP for material A is greater than that of the linear portion OR for material B. Hence, statement (A) is correct. The plastic region for material A (from P to Q) is greater than that (from R to S) for material B, which indicates that material A is more ductile. Hence, statement (B) is in correct. The breaking stress for material B in (i.e., stress corresponding to point S) is less than that for material A (i.e., stress corresponding to point Q), hence material A is stronger than material B.
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