(a) A
(b) A
For a given strain, the stress for material A is more than it is for material B, as shown in the two graphs.
For a given strain, if the stress for a material is more, then Young’s modulus is also greater for that material. Therefore, Young’s modulus for material A is greater than it is for material B.
The amount of stress required for fracturing a material, corresponding to its fracture point, gives the strength of that material. Fracture point is the extreme point in a stress-strain curve. It can be observed that material A can withstand more strain than material B.
Hence, material A is stronger than material B.
